Question
Wed March 16, 2011 By: Divya Khare

A man stands at rest in front of a large smooth wall.Directly infront of him, between him and wall he holds a vibrating tuning fork of frequency 400Hz.He now moves the fork towards the wall with a speed of 1m/s.How many beats will he hear between the sound waves reaching him directly from the fork, and those reaching him after being reflected from wall?

Expert Reply
Wed April 13, 2011
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