PhysicsIn resonance column apparatus, for given tuning fork, first resonating length of air column is l1, nd length of remaining water column is  ‘9l1’ what is the maximum number of resonances that can be observed?

In resonance column apparatus, for given tuning fork, first resonating length of air column is l1, nd length of remaining water column is  '9l1' what is the maximum number of resonances that can be observed?

  1. A

    9

  2. B

    8

  3. C

    10

  4. D

    5

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    Solution:

    Total length of pipe =10l1

    1st resonance at l1 so 2nd  at 3l1,3rd  at 5 l1,

    4th  at 7l1 and 5 that 9l1

     '5' resonances possible. 

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