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A person clapped his hands near a cliff ...

A person clapped his hands near a cliff and heard the echo after 2 s. what is the distance of the cliff from the person if the speed of the sound. v is taken as 346 `ms^(-1)`?

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To find the distance of the cliff from the person based on the time taken to hear the echo, we can follow these steps: ### Step 1: Understand the situation When the person claps, the sound travels to the cliff and then reflects back to the person. The total time taken for the sound to travel to the cliff and back is given as 2 seconds. ### Step 2: Define the variables Let: - \( D \) = distance from the person to the cliff (in meters) ...
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NCERT ENGLISH-SOUND -Exercise
  1. A person clapped his hands near a cliff and heard the echo after 2 s....

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  2. How does the sound produced by a vibrating object in a medium reach yo...

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  3. Explain how sound is produced by your school bell ?

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  4. Why are sound waves called mechanical waves ?

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  5. Suppose you and your friend are on the Moon. Will you be able to hear ...

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  6. Which wave property determines (a) loudness (b) Pitch ?

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  7. Guess which has a higher pitch : a guitar or a car horn ?

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  8. What are wavelength, frequency, time period and amplitude of a sound w...

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  9. How are the wavelength and frequency of a sound wave related to its sp...

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  10. Calculate the wavelength of a sound wave whose frequency is 220 Hz and...

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  11. A person is listening to a tone of 500 Hz sitting at a distance of 450...

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  12. Distinguish between loudness and intensity of sound.

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  13. In which of the three media : air, water or iron , does sound travel t...

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  14. An echo is returned in 3 s. What is the distance of the reflecting sur...

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  15. Why are the ceilings of concert halls curved ?

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  16. What is the audible range of the average human ear ?

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  17. What is the range of frequencies associated with (a) infra sound (...

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  18. A submarine emits a sonar pulse, which returns from an underwater clif...

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  19. What is sound and how is it produced ?

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  20. Describe with the help of a diagram, how compressions and rarefactions...

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  21. Cite an experiment to show that sound needs a material for its propaga...

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