Home Physics Wave and Sound General It is desired to increase the fundamental re…
Physics Wave and Sound General MCQ (Single Correct)

It is desired to increase the fundamental resonance frequency in a tube which is closed at one end. This can be achieved by

A
replacing the air in the tube by hydrogen gas
B
increasing the length of the tube
C
decreasing the length of the tube
D
opening the closed end of the tube

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(a, c, d)

n v/ λ

To increase fundamental resonance frequency of tube.

Velocity of sound in hydrogen can be increased.

Length of tube can be decreased.

For tube closed from one end fundamental frequency is v/4 λ

For tube open from both ends fundamental frequency is v/2 λ

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