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The phenomenon of echo is an example of...

The phenomenon of echo is an example of

A

reflection

B

refraction

C

beat

D

resonance

Text Solution

Verified by Experts

The correct Answer is:
A
The phenomenon of echo is an example of reflection by a rigid boundary
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NCERT FINGERTIPS-WAVES-Reflection Of Waves
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  2. The phenomenon of echo is an example of

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  7. A bat emits ultrasonic sound of frequency 100 kHz in air. If this soun...

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  8. In a stationary longitudinal wave, nodes are points of

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  9. Which of the following statements is correct?

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  10. In an organ pipe of length L open at both ends, the fundamental mode h...

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  11. The transverse displacement of a string clamped at its both ends is gi...

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  12. One of the modes of resonance in a tube containing water at one end ha...

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  13. Two open organs pipes of fundamental frequencies v(1) and v(2) are joi...

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  15. A string fixed at its both ends vibrates in 5 loops as shown in the fi...

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  16. Which of the following statements is incorrect for a stationary wave?

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  17. The fundamental note produced by a closed organ pipe is of frequency v...

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  19. A pipe 30 cm long, is open at both ends. Which harmonic mode of the pi...

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