Which of the following substances will have the lowest speed of sound?
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Physics GK · all questionsSounds waves and Motion
Sounds waves and Motion
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What is the approximate range of sound for humans?
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Loudness of sound depends upon which of the following?
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Sonar is a device that uses ultrasonic waves to measure the distance, direction and speed of object . . . . . . . .
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It is a quantity that does not describe the nature of a wave-
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A person clapped near the rock and he was heard echo after 4 seconds. So what is the distance of the rock from the person?
(Speed of sound = 346m/s)
(Speed of sound = 346m/s)
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Echocardiogram is more closely related to?
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With the propagation of a longitudinal wave through a material medium, the quantities transferred in the direction of propagation are
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Which of the following statements is true? The velocity of sound is
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A worker was working on the rail track. A boy at a distance holds his ear near the rail track. This boy was able to hear sound of the blow of workman twice. It is because of
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The area of high density of particles in the medium at the time of sound transmission is called:
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The Doppler's effect is applicable for
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Assertion (A): Radio waves bend in a magnetic field.
Reason (R): Radio waves are electromagnetic in nature.
Reason (R): Radio waves are electromagnetic in nature.
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To hear a clear echo, the minimum distance between the reflecting surface and the observer should be
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What is the distance between two consecutive compressions in a longitudinal wave?
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What causes sound?
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Which of the following is not a transverse wave?
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One important characteristic of sound is 'Pitch', which depends upon
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Dilution occurs where there is air pressure-
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The repeated reflection that results in persistance of sound is called:
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