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Which of the following help in the commu...

Which of the following help in the communication between two astronatus on the moon?

A

Light waves

B

Sound waves

C

Radio waves

D

A face-to-face talk

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MODERN PUBLICATION-SOUND-EXERCISE
  1. Distance between a consecutive crest and trough is 5 cm. The wave leng...

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  2. In which part of the ear are sound waves amplified?

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  3. Which of the following help in the communication between two astronatu...

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  4. A marine survey ship sends a sound wave straight to the sea bed. It de...

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  5. What is the least time interval required to hear a distinct echo?

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  6. Which of the following statements about sound waves is correct?

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  7. The regions of compressions and rarefractions of sound wave are establ...

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  8. Identify the longitudinal waves from the following.

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  9. A wave source produces 10 oscillations in 100 ms . Find the time perio...

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  10. What does a wave transfer?

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  11. Differentiate between crest and trough.

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  12. Why are cannot hear an echo in a small room?

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  13. Mention the types of mechanical waves. Identify the type which can be ...

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  14. Draw graph for a wave representing wave disturbances and time for a so...

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  15. When does the ear drum of human ear vibrate?

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  16. List three points which an engineer should use while designing an audi...

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  17. A man fires a rifle in front of a cliff and hears the echo after 3 sec...

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  18. Waves of special frequencies are used for cleaning hard to reach place...

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  19. Waves of special frequencies are used for cleaning hard to reach place...

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  20. Waves of special frequencies are used for cleaning hard to reach place...

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