Bharti Bhawan Class 10 Physics Solution in Hindi PDF 2024

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Bharti Bhawan Class 10 Physics MCQs in Hindi for Students

A 10 V battery of negligible internal resistance is charged by a 200 V D.C. supply. If the resistance in the charging circuit is 38 22, what is the value of the charging current?

In a potentiometer of 10 wires, the balance point is obtained on the 7th wire. To shift the balance point on the 9th wire, we should :

In the electric circuit terminal potential difference is 1.5 volts and the potential difference across internal resistance is 0.5 volts. The emf of the cell in the circuit will be

The potential gradient along the potentiometer wire is 6 mV/cm. The balancing length for a cell of emf 1.5 volts will be :

The wire of the potentiometer has a resistance of 4Ω and a length of 1 m. It is connected to a cell of emf 2 V and internal resistance 1Ω. The current flowing through the potentiometer wire is :

A voltmeter has a resistance of 50 Ω is connected across a cell of emf 2 V and internal resistance of 10 Ω. The reading of the voltmeter is :

The e.m.f of a cell is 2 V and when it is connected to a wire of 10 Ω resistance the potential difference between the terminal is 1 V. The internal resistance of the cell is :

A potentiometer wire of 1000cm in length, is adjusted to give a null point at 500cm with a standard cell of e.m.f 1.018 V. The e.m.f of a cell that gives a null point at 600cm is :

In a potentiometer experiment, it is found that no current passes through the galvanometer when the terminals of the cells are connected across 52 cm of the potentiometer wire. If the cell is shunted by a resistance 5 Ω the balance point is found at 40 cm of the wire for the same cell. The internal resistance of the cell is :

A cell sends a current of 1 A through a circuit of resistance 5 Ω. The emf of the cell of internal resistance 1 Ω will be :

The velocity of light in a vacuum can be changed by changing :

A man in the air and a fish in water appear to be 30 cm from the surface. If the refractive index of water is 4/3, then the true depth at which the fish remain is :

The phenomenon of interference is shown by :

When viewed in white light, soap bubbles show colours because of :

The intensity of light at a point is :

The intensity of a beam of light is determined by its :

In a wave disturbance, the distance between successive points that have the same phase is called :

Out of the following which colour a monochromatic beam cannot be obtained?

The intensity of a wave at a point is defined as the energy incident in a unit area :

Historically the speed of light was first determined by :

In a vacuum, the speed of light does not depend on

A straight line path of transfer of light energy is called :

A plane glass slab is kept over various coloured letters. The letter which appears least raised is :

Choose only the wrong statement out of the following :

An object looks red when seen through a piece of red glass. What is the actual colour of the object :

A man sets his watch by a whistle that is 2 km away. How much will his watch be in error? (Speed of sound in air 330 m/s) ?

A traveling wave phases a point of observation. At this point, the time interval between successive crests is 0.2 seconds and :

For the phenomenon of interference, the necessary conditions are :

The intensity of sound gets reduced by 20% on passing through a slab. The reduction in intensity on passage through two consecutive slabs is :

A sample of oxygen at NTP has volume v and a sample of hydrogen at NTP has volume 4v. Both the gases are mixed and the mixture is maintained at NTP. If the speed of sound in hydrogen at NTP is 1270 m/s, that in the mixture will be :

A plane wave is represented by x = 1.2 sin (314 t + 12.56 y) Where x and y are distances measured along in the x and y direction in meters and t is time in seconds. This wave has :

A source of unknown frequency gives 4 beats/s when sounded with a source of known frequency 250 Hz. The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency 513 Hz. The unknown frequency is

A tuning fork of frequency 480 Hz produces 10 beats per second when sounded with a vibrating sonometer string. What must have been the frequency of the string if a slight increase in tension produces fewer beats per second than before?

What is the S.I. unit of electric current?

If objects appear enlarged and inverted in a rearview mirror, then which type of mirror is used?

Soap bubble attains a spherical shape due to...

Which color is formed when Red and Green are mixed?

What is the S.I. unit of temperature?

Which among the following determines the pitch of a sound?

Which phenomena show the particle nature of light?

What is the SI unit of intensity of sound?

When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion?

What is the S.I. unit of heat energy?

At what temperature (in degrees Celsius), do the numerical values on Celsius and Fahrenheit scales become equal?

The sliding friction is ......... than the static friction.

The splitting of white light into its components is due to:

A small drop of oil spreads over water because:

A simple machine cannot:

Which one among the following given processes cannot be demonstrated with sound waves?

What types of lenses are used in movie projectors?

In a ......... network, all devices are connected to a device called a hub and they communicate through it.

In Young's experiment wavelength of light 5000Å is used. One of the slits is covered by a transparent sheet of thickness 18 µm, made of material with a refractive index of 1.5. The number of fringes shifted due to the introduction of the sheet are :

Two slits separated by a distance of 1 mm are illumined by the light of wavelength 6500 A. The distance of the slit from the source is 1m. The distance between the fifth bright band and 3rd dark band on the same side of the central bright band is :

Monochromatic light from narrow parallel slits produces an interference pattern on a screen. The separation between the two slits is now doubled and the distance between the screen and slits is reduced to half, the fringe width:

What is the percentage change in fringe width if the distance between the slits in Young's experiment is reduced by 10% and the distance between the slit and the screen is increased by 15% :

In Young's double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is immersed in water of refractive index 4/3, without disturbing the geometrical arrangement, the new fringe width will be :

The distance of the 10th dark band from the center of the interference pattern is 11 mm. The bandwidth is :

In an interference pattern, the path difference between two waves interfering at the central point on the screen is :

In an interference experiment, the separation between 2nd and 3rd dark fringe on a screen is 5 mm. The screen is at a distance of 1.5 m from the source. If the wavelength of light is 5000 A°, the separation between the two interfering sources is :

Bharti Bhawan Class 10 Physics MCQs in Hindi for Students

Bharti Bhawan Class 10 Physics MCQs in Hindi PDF Free Download

A 10 V battery of negligible internal resistance is charged by a 200 V D.C. supply. If the resistance in the charging circuit is 38 22, what is the value of the charging current?

(A) 10 A

(B) 2.5 A

(D) 2 A

Option c - 5 A

In a potentiometer of 10 wires, the balance point is obtained on the 7th wire. To shift the balance point on the 9th wire, we should :

(A) decrease resistance in the main circuit

(B) decrease resistance in the cell circuit

(D) increase resistance in the cell circuit

Option c - increase resistance in the main circuit

In the electric circuit terminal potential difference is 1.5 volts and the potential difference across internal resistance is 0.5 volts. The emf of the cell in the circuit will be

(A) 1.5 volt

(B) 1 volt

(D) 2 volt

Option d - 2 volt

The potential gradient along the potentiometer wire is 6 mV/cm. The balancing length for a cell of emf 1.5 volts will be :

(A) 150 cm

(B) 200 cm

(D) 300 cm

Option c - 250 cm

The wire of the potentiometer has a resistance of 4Ω and a length of 1 m. It is connected to a cell of emf 2 V and internal resistance 1Ω. The current flowing through the potentiometer wire is :

(A) 0.1 A

(B) 0.2 A

(D) 0.8 A

Option c - 0.4 A

A voltmeter has a resistance of 50 Ω is connected across a cell of emf 2 V and internal resistance of 10 Ω. The reading of the voltmeter is :

(A) 0.1 V

(B) 1.414 V

(D) 1.66 V

Option d - 1.66 V

The e.m.f of a cell is 2 V and when it is connected to a wire of 10 Ω resistance the potential difference between the terminal is 1 V. The internal resistance of the cell is :

(Α) 5Ω

(Β) 10 Ω

(D) 20 Ω

Option b - 10 Ω

A potentiometer wire of 1000cm in length, is adjusted to give a null point at 500cm with a standard cell of e.m.f 1.018 V. The e.m.f of a cell that gives a null point at 600cm is :

(A) 1.22 V

(B) 2.22 V

(D) 4. 22 V

Option a - 1.22 V

In a potentiometer experiment, it is found that no current passes through the galvanometer when the terminals of the cells are connected across 52 cm of the potentiometer wire. If the cell is shunted by a resistance 5 Ω the balance point is found at 40 cm of the wire for the same cell. The internal resistance of the cell is :

(A) 5.2 Ω

(Β) 4 Ω

(D) 1Ω

Option c - 1.5Ω

A cell sends a current of 1 A through a circuit of resistance 5 Ω. The emf of the cell of internal resistance 1 Ω will be :

(A) 5 volt

(B) 1 volt

(D) 4 volt

Option c - 6 volt

The velocity of light in a vacuum can be changed by changing :

(A) frequency

(B) wavelength

(D) none of these

Option d - none of these

A man in the air and a fish in water appear to be 30 cm from the surface. If the refractive index of water is 4/3, then the true depth at which the fish remain is :

(A) 30 cm

(B) 40 cm

(D) 35 cm

Option b - 40 cm

The phenomenon of interference is shown by :

(A) longitudinal mechanical waves only

(B) transverse mechanical waves only

(D) all the above types of waves

Option d - all the above types of waves

When viewed in white light, soap bubbles show colours because of :

(A) Interference

(B) Diffraction

(D) Scattering

Option a - Interference

The intensity of light at a point is :

(A) directly proportional to the amplitude

(B) inversely proportional to the amplitude

(D) inversely proportional to the square of the amplitude

Option c - directly proportional to the square of the amplitude

The intensity of a beam of light is determined by its :

(A) velocity

(B) wavelength

(D) frequency

Option c - amplitude

In a wave disturbance, the distance between successive points that have the same phase is called :

(A) wavelength

(B) phase distance

(D) all of these

Option a - wavelength

Out of the following which colour a monochromatic beam cannot be obtained?

(A) Red

(B) White

(D) Blue

Option b - White

The intensity of a wave at a point is defined as the energy incident in a unit area :

(A) per unit of time in the normal direction

(B) per unit time in any direction

(D) any direction

Option a - per unit of time in the normal direction

Historically the speed of light was first determined by :

(A) Roemer

(B) Galileo

(D) Foucault

Option a - Roemer

In a vacuum, the speed of light does not depend on

(A) the speed of the observer

(B) the speed of the source

(D) all of the above

Option d - all of the above

A straight line path of transfer of light energy is called :

(A) a beam of light

(B) a ray of light

(D) both (B) and (C)

Option d - both (B) and (C)

A plane glass slab is kept over various coloured letters. The letter which appears least raised is :

(A) green

(B) red

(D) violet

Option b - red

Choose only the wrong statement out of the following :

(A) light is a form of energy

(B) light travels in the form of energy

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(D) like sound, light cannot travel through a vacuum

Option d - like sound, light cannot travel through a vacuum

An object looks red when seen through a piece of red glass. What is the actual colour of the object :

(A) red only

(B) white only

(D) red or white

Option d - red or white

A man sets his watch by a whistle that is 2 km away. How much will his watch be in error? (Speed of sound in air 330 m/s) ?

(A) 3-second fast

(B) 3-second slow

(D) 6-second slow

Option d - 6-second slow

A traveling wave phases a point of observation. At this point, the time interval between successive crests is 0.2 seconds and :

(A) The wavelength is 5m

(B) The frequency is 5 Hz

(D) The wavelength is 0.2 m

Option b - The frequency is 5 Hz

For the phenomenon of interference, the necessary conditions are :

(A) The two sources must be of the same frequency

(B) The two sources must be of the same amplitude

(D) All the above three conditions are necessary

Option a - The two sources must be of the same frequency

The intensity of sound gets reduced by 20% on passing through a slab. The reduction in intensity on passage through two consecutive slabs is :

(A) 40%

(B) 36%

(D) 50%

Option b - 36%

A sample of oxygen at NTP has volume v and a sample of hydrogen at NTP has volume 4v. Both the gases are mixed and the mixture is maintained at NTP. If the speed of sound in hydrogen at NTP is 1270 m/s, that in the mixture will be :

(A) 317 m/s

(B) 635 m/s

(D) 950 m/s

Option b - 635 m/s

A plane wave is represented by x = 1.2 sin (314 t + 12.56 y) Where x and y are distances measured along in the x and y direction in meters and t is time in seconds. This wave has :

(A) A wavelength of 0.25 m and travels in the positive direction of X - the axis

(B) A wavelength of 0.25 m and travels in a positive direction of Y - the axis

(D) A wavelength of 0.5 m travels in the negative direction of X - the axis.

Option c - A wavelength of 0.5 m and travels in the negative direction of Y - the axis

A source of unknown frequency gives 4 beats/s when sounded with a source of known frequency 250 Hz. The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency 513 Hz. The unknown frequency is

(A) 246 Hz

(B) 240 Hz

(D) 254 Hz

Option d - 254 Hz

A tuning fork of frequency 480 Hz produces 10 beats per second when sounded with a vibrating sonometer string. What must have been the frequency of the string if a slight increase in tension produces fewer beats per second than before?

(A) 460 Hz

(B) 470 Hz

(D) 490 Hz

Option b - 470 Hz

What is the S.I. unit of electric current?

(a) Newton

(b) Joule

(d) Watt

Option c - Ampere

If objects appear enlarged and inverted in a rearview mirror, then which type of mirror is used?

(a) Concave

(b) Convex

(d) Plane

Option a - Concave

Soap bubble attains a spherical shape due to...

(a) inertia

(b) pressure

(d) viscosity

Option c - surface tension

Which color is formed when Red and Green are mixed?

(a) Light blue

(b) Yellow

(d) Grey

Option b - Yellow

What is the S.I. unit of temperature?

(a) Kelvin

(b) Joule

(d) Fahrenheit

Option a - Kelvin

Which among the following determines the pitch of a sound?

(a) Amplitude

(b) Frequency

(d) Wavelength

Option b - Frequency

Which phenomena show the particle nature of light?

(a) Diffraction

(b) Interference

(d) Polarisation

Option c - Photoelectric effect

What is the SI unit of intensity of sound?

(a) Decibel

(b) Newton

(d) Tesla

Option a - Decibel

When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion?

(a) Energy

(b) Displacement

(d) Acceleration

Option a - Energy

What is the S.I. unit of heat energy?

(a) Joule

(b) Newton

(d) Kelvin

Option a - Joule

At what temperature (in degrees Celsius), do the numerical values on Celsius and Fahrenheit scales become equal?

(a) -40

(b) 40

(d) -273

Option a - -40

The sliding friction is ......... than the static friction.

(a) double

(b) same

(d) smaller

Option d - smaller

The splitting of white light into its components is due to:

(a) transmission

(b) dispersion

(d) refraction

Option b - dispersion

A small drop of oil spreads over water because:

(a) oil has a higher viscosity

(b) water has a higher viscosity

(d) water has a higher surface tension

Option d - water has a higher surface tension

A simple machine cannot:

(a) multiply force

(b) multiply speed

(d) change the direction of the applied force

Option c - multiply work

Which one among the following given processes cannot be demonstrated with sound waves?

(a) Refraction

(b) Polarization

(d) Transmission

Option b - Polarization

What types of lenses are used in movie projectors?

(a) Concave

(b) Convex

(d) Meniscus lens

Option b - Convex

In a ......... network, all devices are connected to a device called a hub and they communicate through it.

(a) Bus

(b) Star

(d) Mesh

Option b - Star

In Young's experiment wavelength of light 5000Å is used. One of the slits is covered by a transparent sheet of thickness 18 µm, made of material with a refractive index of 1.5. The number of fringes shifted due to the introduction of the sheet are :

(A) 180

(B) 9

(D) 18

Option d - 18

Two slits separated by a distance of 1 mm are illumined by the light of wavelength 6500 A. The distance of the slit from the source is 1m. The distance between the fifth bright band and 3rd dark band on the same side of the central bright band is :

(A) 0.65 mm

(B) 2.65 mm

(D) 3 mm

Option c - 1.625 mm

Monochromatic light from narrow parallel slits produces an interference pattern on a screen. The separation between the two slits is now doubled and the distance between the screen and slits is reduced to half, the fringe width:

(A) is doubled

(B) becomes 4 times

(D) remains the same

Option c - becomes 1/4 times

What is the percentage change in fringe width if the distance between the slits in Young's experiment is reduced by 10% and the distance between the slit and the screen is increased by 15% :

(A) 25.4%

(B) 27.7%

(D) 33.5%

Option b - 27.7%

In Young's double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is immersed in water of refractive index 4/3, without disturbing the geometrical arrangement, the new fringe width will be :

(A) 0.4 mm

(B) 0.35 mm

(D) 0.3 mm

Option d - 0.3 mm

The distance of the 10th dark band from the center of the interference pattern is 11 mm. The bandwidth is :

(A) 19/22 mm

(B) 22/19 mm

(D) 1.5 mm

Option d - 1.5 mm

In an interference pattern, the path difference between two waves interfering at the central point on the screen is :

(A) always zero

(B) less than zero

(D) of any value

Option a - always zero

In an interference experiment, the separation between 2nd and 3rd dark fringe on a screen is 5 mm. The screen is at a distance of 1.5 m from the source. If the wavelength of light is 5000 A°, the separation between the two interfering sources is :

(A) 15 m

(B) 1.5 mm

(D) 1.5 m

Option c - 0.15 mm

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Bharti Bhawan Class 10 Physics MCQs in Hindi for Students

A 10 V battery of negligible internal resistance is charged by a 200 V D.C. supply. If the resistance in the charging circuit is 38 22, what is the value of the charging current?

In a potentiometer of 10 wires, the balance point is obtained on the 7th wire. To shift the balance point on the 9th wire, we should :

In the electric circuit terminal potential difference is 1.5 volts and the potential difference across internal resistance is 0.5 volts. The emf of the cell in the circuit will be

The potential gradient along the potentiometer wire is 6 mV/cm. The balancing length for a cell of emf 1.5 volts will be :

The wire of the potentiometer has a resistance of 4Ω and a length of 1 m. It is connected to a cell of emf 2 V and internal resistance 1Ω. The current flowing through the potentiometer wire is :

A voltmeter has a resistance of 50 Ω is connected across a cell of emf 2 V and internal resistance of 10 Ω. The reading of the voltmeter is :

The e.m.f of a cell is 2 V and when it is connected to a wire of 10 Ω resistance the potential difference between the terminal is 1 V. The internal resistance of the cell is :

A potentiometer wire of 1000cm in length, is adjusted to give a null point at 500cm with a standard cell of e.m.f 1.018 V. The e.m.f of a cell that gives a null point at 600cm is :

A cell sends a current of 1 A through a circuit of resistance 5 Ω. The emf of the cell of internal resistance 1 Ω will be :

The velocity of light in a vacuum can be changed by changing :

A man in the air and a fish in water appear to be 30 cm from the surface. If the refractive index of water is 4/3, then the true depth at which the fish remain is :

The phenomenon of interference is shown by :

When viewed in white light, soap bubbles show colours because of :

The intensity of light at a point is :

The intensity of a beam of light is determined by its :

In a wave disturbance, the distance between successive points that have the same phase is called :

Out of the following which colour a monochromatic beam cannot be obtained?

The intensity of a wave at a point is defined as the energy incident in a unit area :

Historically the speed of light was first determined by :

In a vacuum, the speed of light does not depend on

A straight line path of transfer of light energy is called :

A plane glass slab is kept over various coloured letters. The letter which appears least raised is :

Choose only the wrong statement out of the following :

An object looks red when seen through a piece of red glass. What is the actual colour of the object :

A man sets his watch by a whistle that is 2 km away. How much will his watch be in error? (Speed of sound in air 330 m/s) ?

A traveling wave phases a point of observation. At this point, the time interval between successive crests is 0.2 seconds and :

For the phenomenon of interference, the necessary conditions are :

The intensity of sound gets reduced by 20% on passing through a slab. The reduction in intensity on passage through two consecutive slabs is :

A sample of oxygen at NTP has volume v and a sample of hydrogen at NTP has volume 4v. Both the gases are mixed and the mixture is maintained at NTP. If the speed of sound in hydrogen at NTP is 1270 m/s, that in the mixture will be :

A plane wave is represented by x = 1.2 sin (314 t + 12.56 y) Where x and y are distances measured along in the x and y direction in meters and t is time in seconds. This wave has :

A source of unknown frequency gives 4 beats/s when sounded with a source of known frequency 250 Hz. The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency 513 Hz. The unknown frequency is

A tuning fork of frequency 480 Hz produces 10 beats per second when sounded with a vibrating sonometer string. What must have been the frequency of the string if a slight increase in tension produces fewer beats per second than before?

What is the S.I. unit of electric current?

If objects appear enlarged and inverted in a rearview mirror, then which type of mirror is used?

Soap bubble attains a spherical shape due to...

Which color is formed when Red and Green are mixed?

What is the S.I. unit of temperature?

Which among the following determines the pitch of a sound?

Which phenomena show the particle nature of light?

What is the SI unit of intensity of sound?

When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion?

What is the S.I. unit of heat energy?

At what temperature (in degrees Celsius), do the numerical values on Celsius and Fahrenheit scales become equal?

The sliding friction is ......... than the static friction.

The splitting of white light into its components is due to:

A small drop of oil spreads over water because:

A simple machine cannot:

Which one among the following given processes cannot be demonstrated with sound waves?

What types of lenses are used in movie projectors?

In a ......... network, all devices are connected to a device called a hub and they communicate through it.

In Young's experiment wavelength of light 5000Å is used. One of the slits is covered by a transparent sheet of thickness 18 µm, made of material with a refractive index of 1.5. The number of fringes shifted due to the introduction of the sheet are :

Two slits separated by a distance of 1 mm are illumined by the light of wavelength 6500 A. The distance of the slit from the source is 1m. The distance between the fifth bright band and 3rd dark band on the same side of the central bright band is :

Monochromatic light from narrow parallel slits produces an interference pattern on a screen. The separation between the two slits is now doubled and the distance between the screen and slits is reduced to half, the fringe width:

What is the percentage change in fringe width if the distance between the slits in Young's experiment is reduced by 10% and the distance between the slit and the screen is increased by 15% :

In Young's double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is immersed in water of refractive index 4/3, without disturbing the geometrical arrangement, the new fringe width will be :

The distance of the 10th dark band from the center of the interference pattern is 11 mm. The bandwidth is :

In an interference pattern, the path difference between two waves interfering at the central point on the screen is :

In an interference experiment, the separation between 2nd and 3rd dark fringe on a screen is 5 mm. The screen is at a distance of 1.5 m from the source. If the wavelength of light is 5000 A°, the separation between the two interfering sources is :

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