Q241
Open questionNoise is measured in
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Q242
Open questionMan perceives sound vibrations in the frequency ranges of
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Q243
Open questionInstrument used to study the behaviour of a vibrating string is :
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Q244
Open questionAmong the following materials sound travels fastest in
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Q245
Open questionSound becomes hazardous noise pollution at decibels?
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Q246
Open questionWhat is the SI unit of intensity of sound?
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Q247
Open questionSound cannot pass through
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Q248
Open questionSound waves cannot travel in
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Q249
Open questionThe quality or tone of a musical sound produced by a stringed instrument depends on
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Q250
Open questionWhich determines the frequency of a sound wave?
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Q251
Open questionThe intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes?
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Q252
Open questionThe velocity of sound in air
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Q253
Open questionInfrasonic sound has a frequency lower than
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Q254
Open questionWhen a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to :
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Q255
Open questionQuality of a musical note depends on
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Q256
Open questionIf a band is played on the moon the sound will
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Q257
Open questionThe shape of our milky way galaxy is
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Q258
Open questionThe colours of stars depend on their
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Q259
Open questionThe substance which conducts current in the solid state is
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Q260
Open questionElectric current is measured by which instrument?
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