MHT CET 2026 Physics question
The lengths of the two pipes open at both ends are L and . If they are sounded together, the beat frequency will be (v = velocity of sound in air)
Answer: (D)
Solution
The fundamental frequency of an open pipe of length is . So and . Beat frequency f_1f_2\dfrac{v}{2}\dfrac{1}{L}\dfrac{1}{L + L_1}$] =
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