Question

A man stands at rest in front of a large smooth wall. Directly in front of him, between him and the wall he holds a vibrating tuning fork of frequency 400 Hz. He now moves the fork towards the wall with a speed of 1m/s. How many beats/s will he hear between the sound waves reaching him directly from the fork, and those reaching him after being reflected from the wall?
1) 1.15 beats/s
2) 2.30 beats/s
3) 4.60 beats/s
4) 9.20 beats/s​

Answer 1

Answer:

9.20 beats/ s bnnnnvvcgghdddgbb

Answer 2

Answer:

9.20 beats is your correct answer

Explanation:

hope i am not wrong

mark my answer as brainliest