Q461
Open questionThe velocity of sound in moist air is more than in dry air because the moist air has
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Q462
Open questionWhich one among the following doesn't have any effect on velocity of sound ?
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Q463
Open questionVelocity of sound in air does not change with the change of
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Q464
Open questionThe propagation of sound waves in a gas involves
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Q465
Open questionWhen two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as
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Q466
Open questionPropagation of sound can be visualised as propagation of ________ variations in the medium
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Q467
Open questionPermissible noise level at Residential area during night time is :
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Q468
Open questionCalculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s
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Q469
Open questionWhich waves cannot be transmitted through vacuum?
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Q470
Open questionSubmerged objects can be located using
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Q471
Open questionThe velocity of sound is more in
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Q472
Open questionEcho is heard due to
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Q473
Open questionA person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is
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Q474
Open questionThe sound produced by a bat is–
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Q475
Open questionSound is heard over longer distances on rainy days because
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Q476
Open questionWhich phenomenon is responsible for the echo of sound wave?
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Q477
Open questionLoudness of sound depends on
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Q478
Open questionWhich one of the following animals can hear ultrasonic sound ?
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Q479
Open questionThe instrument which uses sound waves to measure the depth of oceans is
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Q480
Open questionMegahertz is a measurement of
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