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CBSE Class 9 Answered

Give answers until as much time you want.
Asked by omprakasharya123 | 14 Feb, 2011, 06:34: AM
answered-by-expert Expert Answer

Dear student

You are sincerely requested to post each query individually; so that we may conviniently answer your queries at our level best.

1. Here, distance, d = 44.1 m ; time, t = 3.13 s; let 's' be the velocity of sound in air.

We know in case of reflection of sound, 2xd = s x t

or, 2 x 44.1 = s x 3.13

or, s = 28 m/s

 

Hope this helps.

Regards

Team

Topperlearning

Answered by | 15 Feb, 2011, 11:40: AM

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