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Byju's Answer
Standard XII
Physics
Periodic Motion
Which of the ...
Question

Which of the following is not correct regarding the experiment to determine the velocity of sound in laboratory by resonance tube method?

A
the resonance tube apparatus should be kept inclined
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B
the turning fork should be struck gently against a soft rubber pad
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C
the vibrating tuning fork should be held horizontally over the open end of the tube
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D
the prongs of vibrating tuning fork should not touch the tube
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Solution

The correct option is B the resonance tube apparatus should be kept inclined
The length of the air column inside the resonance tube is determined by the amount of water kept in the tube.
If a water filled tube is inclined, the length of resonance column would be different at different lines parallel to the tube, and thus a number of resonating lengths would be created.

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