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NEET 2015 Physics question

PhysicsWavesNEET 2015

The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second overtone of an organ pipe open at both the ends. The length of organ pipe open at both the ends is :-

Answer: (2)

Solution

Fundamental frequency of the closed pipe of length : . An open pipe of length has frequencies with ; its

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Question ID VK-091804