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MHT CET Physics question

PhysicsWavesMHT CET

A sonometer wire of length 'L' between the two bridges vibrates in 3rd harmonic. Anti-nodes are formed at [MHT-CET 2021]

Answer: (D)

Solution

In the 3rd harmonic there are 3 loops each of length , with antinodes at the middle of each loop: $Missing argument for \frac\frac L6,Missing argument for \frac\frac

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Question ID VK-070561