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Which of the following doesn’t produce a...

Which of the following doesn’t produce a sound wave?

A

A bell ringing under water.

B

An explosion in outer space

C

A gun fired in a room with no echoes.

D

A hammer hitting a block of rubber.

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TARGET PUBLICATION-Sound-Exercise
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  2. The velocity of sound is greatest in

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  3. A heavy ball of mass M is suspended from the ceiling of a car by a lig...

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  4. The transverse displacement of a string clamped at both ends is by y (...

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  5. Two boys stand close to a long straight metal pipe, at some distance f...

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  6. A uniform rope of length L and mass m1 hangs vertically from a rigid s...

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  7. A granite rod of 60 cm length is clamped at its middle point and is se...

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  8. At a temperature of 314 K and a pressure of 100 kPa, the speed of soun...

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  9. The extension in a string, obeying Hooke’s law, is x. The speed of the...

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  10. When sound is produced in an aeroplane moving with a velocity of 250 m...

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  11. Neon is 20 times heavier than hydrogen. The equal volumes of hydrogen ...

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  12. Sound waves in air are always longitudinal, because

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  13. Which of the following doesn’t produce a sound wave?

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  14. The ratio of velocity of sound in hydrogen and chlorine at STP is

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  15. Assertion: For sound waves, air is rarer medium than water. Reason: ...

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  16. Which of the following statements is true for wave motion ?

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  17. The ratio of the speed of sound in nitrogen gas to that in helium gas,...

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  18. A source of sound of frequency 750 Hz is placed inside water. The spee...

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  19. An observer standing near the seashore observes 42 waves per minute. I...

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  20. Under similar conditions of temperature and pressure, in which of the ...

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