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MHT CET 2022 Physics question

PhysicsWavesMHT CET 2022

In fundamental mode, the time required for the sound wave to reach upto the closed end of a pipe filled with air is 't' second. The frequency of vibration of air column is

Answer: (D)

Solution

Let the pipe length be and speed of sound . The wave reaches the closed end in , so . In the fundamental mode of a closed pipe, , so and

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Question ID VK-095711