Q221
Open questionStationary wave is formed by
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Physics GK · all questionsSounds waves and Motion
Sounds waves and Motion
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Q222
Open questionSound is one of the following-
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Q223
Open questionNoise is measured in
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Q224
Open questionThe visible portion of the electromagnetic spectrum is
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Q225
Open questionThe amplitude of the sound wave depends on-
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Q226
Open questionPut in ascending order the speed of sound in the mediums.
1. Water
2. Steel
3. Nitrogen
1. Water
2. Steel
3. Nitrogen
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Q227
Open questionQuality of a musical note depends on
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Q228
Open questionResonance is an example of
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Q229
Open questionWhen a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to
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Q230
Open questionWhich technique is used to determine the depth of the ocean, explore underwater hills, valleys, submarines, icebergs etc.?
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Q231
Open questionThe technique used to transmit audio signals in television broadcast is
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Q232
Open questionSound is a form of . . . . . . . . that produces sensation of heating.
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Q233
Open questionSpeed of sound at 0° C in air will be:
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Q234
Open questionConsider the following statements.
1. In sound waves, the vibrations are perpendicular to the direction in which the wave travels.
2. Sound waves are elastic waves.
Which of the statement(s) given above is/are correct?
1. In sound waves, the vibrations are perpendicular to the direction in which the wave travels.
2. Sound waves are elastic waves.
Which of the statement(s) given above is/are correct?
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Q235
Open questionA sound wave has a frequency of 4 kH2 and a wavelength of 40 cm. The time taken by a sound wave to cover a distance of 3.2km is-
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Q236
Open questionNoise pollution is created if noise is in excess to
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Q237
Open questionCalculate the wavelength of a sound wave that has a frequency of 200 Hz and its speed in a given medium is 400 ms-1.
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Q238
Open questionThe velocity of sound in air is approximately
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Q239
Open questionA boat at anchor is rocked by waves whose consecutive crests are 100 m apart. The velocity of the wave of the moving crests is 25 ms-1. What is the frequency of the rocking of the boat?
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Q240
Open questionThe amount of sound energy passing in the unit area per second is called-
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