Physics-
General
Easy

Question

You are given four tuning forks, the lowest frequency of the forks is 300 Hz. By striking two tuning forks at a time any of 1, 2, 3, 5, 7 & 8 Hz beat frequencies are heard. The possible frequencies of the other three forks are-

  1. 301,302 & 307    
  2. 300,304 & 307    
  3. 301, 303 & 308    
  4. 305, 307 & 308    

The correct answer is: 301, 303 & 308


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