Physics-
General
Easy

Question

In the experiment for the determination of the speed of sound in air using the resonance column method, the length of the air column that resonates in the fundamental mode, with a tuning fork is 0.1 m. when this length is changed to 0.35 m, the same tuning fork resonates with the first overtone. Calculate the end correction

  1. 0.012m    
  2. 0.025m    
  3. 0.05m    
  4. 0.024m    

The correct answer is: 0.025m


    Let x be the end correction then according to question.
    fraction numerator v over denominator 4 left parenthesis l subscript 1 end subscript plus x right parenthesis end fraction equals fraction numerator 3 v over denominator 4 left parenthesis l subscript 2 end subscript plus x right parenthesis end fraction rightwards double arrow x equals 2.5 c m equals 0.025 m.

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