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Physics GK · all questions

Sounds waves and Motion
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Vibration of which among the following produces only odd harmonics?

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A sound wave has a frequency of 3.5 kHz and its wavelength is 0.1 m. So how much time required to cover a distance of 700 meters?

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Diffraction effect are more easily defected in case of a sound wave than light waves because

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In which medium, velocity of sound is maximum?

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Statement I Sound waves can travel through vacuum.
Statement II Light is an electromagnetic wave and can travel through vacuum.

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If the frequency of a sound wave is increased at a given velocity, what is the effect on its wavelength?

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What is the frequency of the wave if the time interval of the vibrating object is 0.04 seconds?

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The frequency of an ultrasonic sound wave is greater than . . . . . . . .

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In case of a forced vibration, the resonance wave becames very sharp when the

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Among the following materials, sound travels fastest in

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Speed of sound is the greatest in

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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.

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What are the sound waves in the air-

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

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Sound travels fastest in which of the following mediums?

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Compared to audible sound waves, ultrasound waves have

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The time period of a second pendulum is

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

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

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Transverse waves can propagate

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