ICSE 9 Physics Question Paper for Students

ICSE 9 Physics Question Paper. We covered all the ICSE 9 Physics Question Paper in this post for free so that you can practice well for the exam.

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ICSE 9 Physics Questions Mock Test for Students

The length of a sonometer wire AB is 110 cm. Where should the two bridges be placed from A to divide the wire into 3 segments whose fundamental frequencies are in the ratio of 1 : 2 : 3?

A closed organ pipe has a fundamental frequency of 100 Hz. What frequencies will be produced, if its other end is also opened? :

With the increase in temperature, the frequency of the sound from an organ pipe :

Four wires of identical lengths, and diameters, and of the same material are stretched on a sonometer wire. The ratio of their tension is 1 : 4 : 9 : 16. The ratio of their fundamental frequencies is :

The three lowest frequencies (in Hz) with which a 20 cm long pipe, closed at one end can vibrate are (speed of sound in air = 340 m/s) :

In Melde’s experiment, the string vibrates in 4 loops when a 50 g weight is placed in the pan of weight 15 g. To make the string vibrate in 6 loops the weight that has to be removed from the pan is approximate:

An open organ pipe has a fundamental frequency of 100 Hz. What frequencies will be produced if one end is closed? :

The term 0.3 D, D being the inner diameter of a tube is called :

A steel rod 100 cm long is clamped in its middle. The fundamental frequency of longitudinal vibrations of the rod is given to be 2.53 kHz. The speed of sound in steel is :

An organ pipe P₁ closed at one end and vibrating in its first overtone and another pipe P₂ open at both ends vibrating in its third overtone is in resonance with a given tuning fork. The ratio of lengths of P₁ P1 and P₂ is :

An open pipe is suddenly closed at one end with the result that the frequency of the third harmonic of the closed pipe is found to be higher by 100 Hz than the fundamental frequency of the open pipe. The fundamental frequency of the open pipe is :

A stretched wire of length 114 cm is divided into three segments whose frequencies are in the ratio 1 : 3 : 4, the length of the segments must be in the ratio :

A string stretched by a weight of 4 kg is vibrating in its fundamental mode. The additional weight required to produce an octave of the first is :

In a stationary longitudinal wave, nodes are points of

In the sonometer experiment, the bridges are separated by a fixed distance. The wire which is slightly elastic emits a tone of frequency ‘n’ when held by tension ‘T’. If the tension is increased to ‘4T’, the tone emitted by the wire will be of frequency :

ICSE 9 Physics Questions Mock Test for Students

The length of a sonometer wire AB is 110 cm. Where should the two bridges be placed from A to divide the wire into 3 segments whose fundamental frequencies are in the ratio of 1 : 2 : 3?

(A) 30 cm and 90 cm

(B) 40 cm and 80 cm

(D) 30 cm and 60 cm

Option c – 60 cm and 90 cm

A closed organ pipe has a fundamental frequency of 100 Hz. What frequencies will be produced, if its other end is also opened? :

(A) 200, 400, 600, 800, …….

(B) 200, 300, 400, 500, …….

(D) 100, 200, 300, 400, …….

Option a – 200, 400, 600, 800, …….

With the increase in temperature, the frequency of the sound from an organ pipe :

(A) Decreases

(B) Increases

(D) Changes erratically

Option b – Increases

Four wires of identical lengths, and diameters, and of the same material are stretched on a sonometer wire. The ratio of their tension is 1 : 4 : 9 : 16. The ratio of their fundamental frequencies is :

(A) 4 : 3 : 2 : 1

(B) 1 : 4 : 9 : 16

(D) 1 : 2 : 3 : 4

Option d – 1 : 2 : 3 : 4

The three lowest frequencies (in Hz) with which a 20 cm long pipe, closed at one end can vibrate are (speed of sound in air = 340 m/s) :

(A) 425, 850, 1275

(B) 425, 1275, 2125

(D) 900, 2700, 4500

Option b – 425, 1275, 2125

In Melde’s experiment, the string vibrates in 4 loops when a 50 g weight is placed in the pan of weight 15 g. To make the string vibrate in 6 loops the weight that has to be removed from the pan is approximate:

(A) 7 g

(B) 36 g

(D) 29 g

Option b – 36 g

An open organ pipe has a fundamental frequency of 100 Hz. What frequencies will be produced if one end is closed? :

(A) 100, 200, 300, …….

(B) 50, 150, 250, …….

(D) 50, 100, 150, 200, …….

Option b – 50, 150, 250, ….

The term 0.3 D, D being the inner diameter of a tube is called :

(A) Laplace’s correction

(B) Rayleigh’s correction

(D) Epoch

Option b – Rayleigh’s correction

A steel rod 100 cm long is clamped in its middle. The fundamental frequency of longitudinal vibrations of the rod is given to be 2.53 kHz. The speed of sound in steel is :

(A) 5.06 km/s

(B) 6.06 km/s

(D) 8.06 km/s

Option a – 5.06 km/s

An organ pipe P₁ closed at one end and vibrating in its first overtone and another pipe P₂ open at both ends vibrating in its third overtone is in resonance with a given tuning fork. The ratio of lengths of P₁ P1 and P₂ is :

(A) 1 : 2

(B) 3 : 4

(D) 3 : 8

Option d – 3 : 8

An open pipe is suddenly closed at one end with the result that the frequency of the third harmonic of the closed pipe is found to be higher by 100 Hz than the fundamental frequency of the open pipe. The fundamental frequency of the open pipe is :

(A) 200 Hz

(B) 300 Hz

(D) 480 Hz

Option a – 200 Hz

A stretched wire of length 114 cm is divided into three segments whose frequencies are in the ratio 1 : 3 : 4, the length of the segments must be in the ratio :

(A) 18 : 24 : 72

(B) 24 :72 : 18

(D) 72 : 24 : 18

Option d – 72 : 24 : 18

A string stretched by a weight of 4 kg is vibrating in its fundamental mode. The additional weight required to produce an octave of the first is :

(A) 4 kg

(B) 8 kg

(D) 16 kg

Option c – 12 kg

In a stationary longitudinal wave, nodes are points of

(A) Maximum pressure

(B) Minimum pressure

(D) Maximum pressure variation

Option d – Maximum pressure variation

In the sonometer experiment, the bridges are separated by a fixed distance. The wire which is slightly elastic emits a tone of frequency ‘n’ when held by tension ‘T’. If the tension is increased to ‘4T’, the tone emitted by the wire will be of frequency :

(A) n

(B) 2n

(D) Slightly less than 2n

Option d – Slightly less than 2n

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ICSE 9 Physics Questions Mock Test for Students

The length of a sonometer wire AB is 110 cm. Where should the two bridges be placed from A to divide the wire into 3 segments whose fundamental frequencies are in the ratio of 1 : 2 : 3?

A closed organ pipe has a fundamental frequency of 100 Hz. What frequencies will be produced, if its other end is also opened? :

With the increase in temperature, the frequency of the sound from an organ pipe :

Four wires of identical lengths, and diameters, and of the same material are stretched on a sonometer wire. The ratio of their tension is 1 : 4 : 9 : 16. The ratio of their fundamental frequencies is :

The three lowest frequencies (in Hz) with which a 20 cm long pipe, closed at one end can vibrate are (speed of sound in air = 340 m/s) :

In Melde’s experiment, the string vibrates in 4 loops when a 50 g weight is placed in the pan of weight 15 g. To make the string vibrate in 6 loops the weight that has to be removed from the pan is approximate:

An open organ pipe has a fundamental frequency of 100 Hz. What frequencies will be produced if one end is closed? :

The term 0.3 D, D being the inner diameter of a tube is called :

A steel rod 100 cm long is clamped in its middle. The fundamental frequency of longitudinal vibrations of the rod is given to be 2.53 kHz. The speed of sound in steel is :

An organ pipe P₁ closed at one end and vibrating in its first overtone and another pipe P₂ open at both ends vibrating in its third overtone is in resonance with a given tuning fork. The ratio of lengths of P₁ P1 and P₂ is :

An open pipe is suddenly closed at one end with the result that the frequency of the third harmonic of the closed pipe is found to be higher by 100 Hz than the fundamental frequency of the open pipe. The fundamental frequency of the open pipe is :

A stretched wire of length 114 cm is divided into three segments whose frequencies are in the ratio 1 : 3 : 4, the length of the segments must be in the ratio :

A string stretched by a weight of 4 kg is vibrating in its fundamental mode. The additional weight required to produce an octave of the first is :

In a stationary longitudinal wave, nodes are points of

In the sonometer experiment, the bridges are separated by a fixed distance. The wire which is slightly elastic emits a tone of frequency ‘n’ when held by tension ‘T’. If the tension is increased to ‘4T’, the tone emitted by the wire will be of frequency :

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