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Earn 100

Voice of your friend can be recognized by its _____.

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Important Questions on Sound

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General Science for Competitive Exams>Chapter 4 - Sound>EXERCISE>Q 3
The ratio of the speed of a body to the speed of sound is called?
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General Science for Competitive Exams>Chapter 4 - Sound>EXERCISE>Q 4
The velocity of sound is largest in _____.
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General Science for Competitive Exams>Chapter 4 - Sound>EXERCISE>Q 5
An underwater explosion is caused near the sea-shore. There are two observers, X is underwater, and Y is on land, each at a distance of 1 km from the point of explosion, then _____.  
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General Science for Competitive Exams>Chapter 4 - Sound>EXERCISE>Q 6
If you are at open-air concert and someone’s head gets between you and the orchestra, you can still hear the orchestra because _____.
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General Science for Competitive Exams>Chapter 4 - Sound>EXERCISE>Q 7
A thunderclap is heard 5.5 s after the lightning flash. The distance of the flash is _____.
(velocity of sound in air =330 m s-1)
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General Science for Competitive Exams>Chapter 4 - Sound>EXERCISE>Q 8
Which of the following is carried by the waves from one place to another?
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General Science for Competitive Exams>Chapter 4 - Sound>EXERCISE>Q 9
Human ears can sense sound waves traveling in the air having a wavelength of _____.
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General Science for Competitive Exams>Chapter 4 - Sound>EXERCISE>Q 10
The frequency of a wave traveling at a speed of 500 ms−1 is 25 Hz. Its time period is _____.