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MHT CET Physics question

PhysicsWavesMHT CET

The string of length 'l' is vibrating between two bridges. The length of the string for first harmonic will be ( = wavelength of the wave) [MHT-CET 2023]

Answer: (C)

Solution

For a string fixed at both ends the first harmonic has a single loop, so ; and

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Question ID VK-070463