Sounds waves and Motion MCQ question and answer with solution

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Each section contains 100 MCQs on Sounds waves and Motion .

Speed of sound is the greatest in

A) water B) air C) glass D) glycerine

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which of the following statements about the speed of sound in different mediums is/are true at 25°C?
A. Speed of sound in steel is 5960 m/s.
B. The speed of sound in nickel is 6240 m/s.

A) Only A is correct B) Neither A nor B is correct C) Both A and B are correct D) Only B is correct

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What are the sound waves in the air-

A) Romoted B) Transverse C) Longitudinal D) The long

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which one of the following waves is used for detecting forgery in currency notes?

A) Ultraviolet waves B) Infrared waves C) Radio waves D) Microwaves

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Sound travels fastest in which of the following mediums?

A) solid matter B) vacuum C) liquids D) gases

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Compared to audible sound waves, ultrasound waves have

A) higher speed B) higher frequency C) Both A and B D) long wavelength

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The time period of a second pendulum is

A) 1 second B) 2 seconds C) 0.5 second D) 1.5 seconds

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The device that uses ultrasonic waves to measure the distance, direction and speed of underwater objects is called:

A) RADAR B) MASER C) CRO D) SONAR

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Speed of sound is maximum in . . . . . . . .

A) vacuum B) gas C) solid D) liquid

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Transverse waves can propagate

A) in a gas but not in a metal B) both in a gas and in a metal C) not in a gas but in a metal D) neither in a gas nor in metal

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Sounds waves and Motion MCQ question and answer with solution | Physics Gk MCQs