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MHT CET 2024 (11 May, Shift 1) · Stationary Waves & Vibrating Strings

Stationary Waves & Vibrating Strings question from MHT CET 2024 (11 May, Shift 1)

Q52MHT CET 2024 · 11 MAY · SHIFT 1Medium

Stationary Waves & Vibrating Strings

At the poles of earth, a stretched wire of a given length vibrates in unison with a tuning fork. At the equator of earth, for same setting, to produce resonance with same fork, the vibrating length of wire

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Answer: (a)

  1. gequator<gpoleg_{equator} < g_{pole}, so T=MgT = Mg and v=T/μv = \sqrt{T/\mu} are smaller at the equator.
  2. To keep n=v2Ln = \dfrac{v}{2L} unchanged, LL must be reduced.
  3. So the answer is (a) should be decreased.
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