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(a) What are the medical applications of...

(a) What are the medical applications of echo?
(b) How can you calculate the speed of sound using echo?

Text Solution

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Echo: Sound reproduced due to the reflection of the original sound.
Calculate the speed of sound using echo:
(i) Total distance travelled from the source to the source to the wall and then back to the receiver = 2d. (ii)
The time taken for this has been observed to be "t". Hence,
Speed of sound `=("Distance travelled")/("Time taken")= (2d)/t`
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