A New Approach to ICSE Physics Class 9. We covered all the A New Approach to ICSE Physics Class 9 in this post for free so that you can practice well for the exam.
Install our MCQTUBE Android app from the Google Play Store and prepare for any competitive government exams for free.
These types of competitive MCQs appear in the exams like MHT-CET, NEET, JEE (Mains), and other Competitive Examinations, etc.
We created all the competitive exam MCQs into several small posts on our website for your convenience.
You will get their respective links in the related posts section provided below.
Related Posts:
- Goyal Brothers Prakashan Class 9 Physics Solutions
- ICSE Physics Class 9 Goyal Brothers Solutions
- ICSE Class 9 Physics Sample Paper
A New Approach to ICSE Physics Class 9 MCQ for Students
A tuning fork of frequency 100 Hz when sounded together with another tuning fork of unknown frequency produces 2 beats/ second. On loading the tuning fork whose frequency is not known and sounded together with a tuning fork of frequency 100 Hz produces one beat, then the frequency of the other tuning fork is :
(A) 102 Hz
(B) 99 Hz
(C) 98 Hz
(D) 101 Hz
Option a – 102 Hz
When two tuning forks A and B are sounded together, x beat/second is heard. The frequency of A is n. Now when one prong of fork B is loaded with a little wax, the number of beats/seconds decreases. The frequency of fork B is : ( A New Approach to ICSE Physics MCQ )
(A) n + x
(B) n-x
(C) n-x²
(D) n – 2x
Option a – n + x
A wave of frequency 500 Hz has a velocity of 360 m/s. The distance between the two nearest points which are 60° out of phase is :
(A) 0.7 cm
(B) 12 cm
(C) 70 cm
(D) 120 cm
Option b – 12 cm
As a transverse wave strikes against a wall : ( A New Approach to ICSE Physics MCQ )
(A) Its phase changes by 180°, but speed does not change
(B) Its phase does not change, but speed changes
(C) Its speed changes and phase changes by 180°
(D) Nothing can be predicted about changes in its speed and phase
Option a – Its phase changes by 180°, but speed does not change
Which of the following parameters undergo a change when the wave is reflected from a rigid boundary? :
(A) Wave velocity
(B) Wavelength
(C) Amplitude
(D) Frequency
Option a – Wave velocity
The sound carried by the air from a sitar to a listener is a wave of the following type : ( A New Approach to ICSE Physics MCQ )
(A) Longitudinal stationery
(B) Transverse progressive
(C) Transverse stationary
(D) Longitudinal progressive
Option d – Longitudinal progressive
Two discs have the same mass and thickness. Their material is of densities d₁ and d₂. The ratio of their moments of inertia about an axis passing through the centre and perpendicular to the plane is :
(A) d₁ : d₂
(B) d₂ : d₁
(C) 1 : d₁d₂
(D) d₁d₂ : 1
Option b – d₂ : d₁
The diameter of a flywheel is increased by 1.5%. What is the percentage increase in M.I. about the central axis? ( A New Approach to ICSE Physics MCQ )
(A) 1.5%
(B) 2%
(C) 0.5%
(D) 3%
Option d – 3%
Two rings of each of mass 1 kg and radius 1 m are placed such that their centres coincide with each other and planes are perpendicular to each other. The moment of inertia about an axis passing through the centre is :
(A) 1.5 kg m²
(B) 0.5 kg m²
(C) 0.25 kg m²
(D) 3 kg m²
Option a – 1.5 kg m²
A solid cylinder of material of density 7000 kg/m³ has a radius of 10 cm and a height of 1 m. Moment of inertia of this cylinder about its axis : ( A New Approach to ICSE Physics MCQ )
(A) 1100 kg m²
(B) 1.1 kg m²
(C) 2200 kg m²
(D) 220 kg m²
Option b – 1.1 kg m²
The moment of inertia of a metre scale of mass 0.6 kg about an axis perpendicular to the scale and located at the 20 cm position on the scale is : (Breadth of the scale is negligible)
(A) 0.074 kg m²
(B) 0.104 kg m²
(C) 0.148 kg m²
(D) 0.208 kg m²
Option b – 0.104 kg m²
If the diameter of the flywheel increases by 1%, then the increase in its M.I. about an axis passing through the centre and perpendicular to the plane will be : ( A New Approach to ICSE Physics MCQ )
(A) 0.5 %
(B) 1%
(C) 2%
(D) 4%
Option c – 2%
The moment of inertia of a solid sphere about its diameter is I. If that sphere is recast into 8 identical small spheres, then the moment of inertia of such a small sphere about its diameter is :
(A) I/8
(B) I/16
(C) I/24
(D) I/32
Option d – I/32
The radius of a ring is 2 cm and its mass is 20 g. Its MI is about an axis passing through the centre and Hiperpendicular to the plane : ( A New Approach to ICSE Physics MCQ )
(A) 10 gm cm²
(B) 20 gm cm²
(C) 40 gm cm²
(D) 80 gm cm²
Option d – 80 gm cm²
When two sound waves are superimposed beats are produced when they have :
(A) Different amplitudes and phases
(B) Different velocities
(C) Different phases
(D) Different frequencies
Option d – Different frequencies
Beats are examples of ( A New Approach to ICSE Physics MCQ )
(A) Diffraction
(B) Polarisation
(C) Interference
(D) Reflection
Option c – Interference
In the production of beats, the two sources must have :
(A) Different frequencies, same amplitude, and same phase
(B) Different frequencies and the same phase
(C) Different frequencies and same amplitudes
(D) Different frequencies
Option d – Different frequencies
Beats are the result of ( A New Approach to ICSE Physics MCQ )
(A) Diffraction
(B) Destructive interference
(C) Constructive and destructive interference
(D) Superposition of two waves of nearly equal frequencies
Option d – Superposition of two waves of nearly equal frequencies
Two tuning forks are sounded together and beats are heard. We can infer that :
(A) The pitches of the two notes are nearly the same
(B) The intensities of the two notes are nearly the same
(C) The qualities of the two notes are nearly the same
(D) The velocities of the two sounds are nearly the same
Option a – The pitches of the two notes are nearly the same
Two sound waves of amplitudes a1 and a2 produce n beats/sec. The ratio of the intensity of maxima and minima is 36 : 4. The amplitudes a1 and a2 are : ( A New Approach to ICSE Physics MCQ )
(A) 36 and 4
(B) 6 and 2
(C) 4 and 2
(D) 3 and 1
Option c – 4 and 2
The intensity ratio of the two waves is 1 : 16. The ratio of their amplitudes is :
(A) 1:16
(B) 1 : 4
(C) 4 : 1
(D) 2 : 1
Option b – 1 : 4
The velocity of sound waves in air is 330 m/s. For a particular sound in air, a path difference of 40 cm is equivalent to a phase difference of 1.67. The frequency of this wave is :
(A) 165 Hz
(B) 150 Hz
(C) 660 Hz
(D) 330 Hz
Option c – 660 Hz
The phase difference between two points separated by 0.8 m in a wave of frequency 120 Hz is 90°. The wave velocity is :
(A) 144 m/s
(B) 256 m/s
(C) 384 m/s
(D) 720 m/s
Option c – 384 m/s
The equation of a sound wave is y = 0.0015 sin (62.8 x + 316 t). Find the wavelength of this wave :
(A) 0.2 unit
(B) 0.1 unit
(C) 0.3 unit
(D) 0.4 unit
Option b – 0.1 unit
If the equation of motion of a simple harmonic progressive wave is y = 0.3 sin (314 t – 1.57 x) the velocity of the wave will be :
(A) 100 unit
(B) 200 unit
(C) 300 unit
(D) 400 unit
Option b – 200 unit
Equations of two simple harmonic progressive waves are y₁ = a sin (wt – kx) y₂ = a sin(kx + wt) then :
(A) The waves are moving in opposite directions
(B) Phase difference between them is 90°
(C) Phase difference between them is 180°
(D) Phase difference between them is 270°
Option a – The waves are moving in opposite directions
For a wave traveling in the positive direction of the X-axis, the particles at higher values of x :
(A) Lag behind in phase
(B) Lead in phase
(C) Have the same phase as any other particle
(D) None of the above
Option a – Lag behind in phase
All other factors remain unchanged the radius of the reference circle is doubled. What shall be the effect on the maximum velocity of the corresponding SHM :
(A) No effect
(B) Shall be doubled
(C) Shall be halved
(D) Shall be quadrupled
Option b – Shall be doubled
A particle performs simple harmonic motion along a line 4 cm long. The velocity of the particle when it passes through the mean position is 7 m/s the period of SHM is :
(A) 0.1 s
(B) 0.04 s
(C) 0,8 s
(D) 0.6 s
Option b – 0.04 s
A particle performs SHM with an amplitude of 8 cm. The particle starts motion at a distance of 2 cm from the extreme position. The initial phase angle of the particle is
(A) 41.4°
(B) 48.6°
(C) 60°
(D) 30°
Option a – 41.4°
The potential energy as a function of displacement for an oscillator is 8x² joule. The magnitude of the force on the oscillator of mass 0.5 kg placed at x = 0.2 m is :
(A) 1.6 N
(B) 3.2 N
(C) 0.8 N
(D) 4.8 N
Option b – 3.2 N
A particle executes SHM of amplitude 25 cm and time periods 3. What is the minimum time required for the particle to move between two points located at 12.5 cm on either side of the mean position?
(A) 0.25 S
(B) 0.5 s
(C) 0.75 s
(D) 1 s
Option c – 0.75 s
A particle performs S.H.M. with an amplitude of 25 cm and a period of 3 s. The minimum time required for it to move between two points 12.5 cm on either side of the mean position is :
(A) 0.6 s
(B) 0.5 s
(C) 0.4 s
(D) 0.2 s
Option b – 0.5 s
Two particles start vibrating together in SHM starting from their mean (equilibrium) positions. If their periods are 40 and 60 s respectively their phase difference after 20 s from the start :
(A) 60°
(B) 30°
(C) 90°
(D) 120°
Option a – 60°
According to Newton’s law of cooling rate of loss of heat by a body is directly proportional to
(A) the Temperature of the surrounding
(B) the Temperature of the body if the temperature difference is small
(C) the difference between the temperature of the body and the temperature of the surroundings if the temperature difference is small
(D) the Fourth power of the absolute temperature of the body
Option c – the difference between the temperature of the body and the temperature of the surroundings if the temperature difference is small
If the temperature of a hot body is increased by 50%, the amount of radiation emitted by it increases approximately by :
(A) 225 %
(B) 250 %
(C) 400 %
(D) 500 %
Option c – 400 %
The velocity of heat radiation in a vacuum is :
(A) Equal to that of light
(B) Less than that of light
(C) Greater than that of light
(D) Equal to that of sound
Option a – Equal to that of light
A piece of metal and a piece of wood are kept at a temperature of 45 °C on touching the two with a hand :
(A) The two will appear equally hot
(B) The piece of wood will appear hotter than the piece of metal
(C) The piece of metal will appear hotter than the piece of wood
(D) The distinction in the hotness will not be possible
Option c – The piece of metal will appear hotter than the piece of wood
The flow of heat from a hot body to a cold body is an example of
(A) Isothermal process
(B) Adiabatic process
(C) Reversible process
(D) Irreversible process
Option d – Irreversible process
In an isothermal expansion :
(A) Internal energy of the gas increases
(B) Internal energy of the gas decreases
(C) Internal energy remains unchanged
(D) the Average kinetic energy of the gas molecule decreases
Option c – Internal energy remains unchanged
For an ideal gas, in an isothermal process :
(A) Heat content remains constant
(B) Heat content and temperature remain constant
(C) Temperature remains constant
(D) None of the above
Option c – Temperature remains constant
A system after passing through different states returns back to its original state:
(A) Isothermal process
(B) Adiabatic process
(C) Isobaric process
(D) Cyclic process
Option d – Cyclic process
If the volume of gas decreases by 10% during the isothermal process then its pressure will :
(A) Decrease by 10%
(B) Increase by 10%
(C) Decrease by 11.11%
(D) Increase by 11.11%
Option b – Increase by 10%
Out of three variables pressure, volume, and temperature :
(A) All three are dependent variables
(B) Any two are independent variables and the third is a dependent variable
(C) All three are independent variables
(D) Only one is independent and the remaining two are dependent variables
Option b – Any two are independent variables and the third is a dependent variable
Thermodynamic variables are :
(A) Mass, specific heat, and density
(B) Pressure, volume, and mass
(C) Volume, mass, and temperature
(D) Pressure, volume, and temperature
Option d – Pressure, volume, and temperature
The internal energy of the gas increases in
(A) Adiabatic expansion
(B) Adiabatic compression
(C) Isothermal expansion
(D) Isothermal compression
Option b – Adiabatic compression
In adiabatic expansion :
(A) dU = 0
(B) dU = negative
(C) dU = positive
(D) dW = 0
Option b – dU = negative
The process in which no heat enters or leaves the system is termed as
(A) Isochoric
(B) Isothermal
(C) Isobaric
(D) Adiabatic
Option d – Adiabatic
We covered all the a new approach to icse physics class 9 above in this post for free so that you can practice well for the exam.
Check out the latest MCQ content by visiting our mcqtube website homepage.
Also, check out:
- ICSE Class 9 Physics Question Paper
- Physics Class 9 ICSE Solutions Goyal Brothers Prakashan
- Class 9 History Chapter 2 Questions and Answers in Hindi
