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The equation of stationary wave is : y=2 a sin ( 2 π n t λ ) cos ( 2 π x λ ) . Which of the following is NOT correct :

JEE Main 2024 — Physics Mechanics

2024mcqeasy

The equation of stationary wave is : y=2asin⁡(2πntλ)cos⁡(2πxλ). y=2 a \sin \left(\frac{2 \pi n t}{\lambda}\right) \cos \left(\frac{2 \pi x}{\lambda}\right) \text {. }y=2asin(λ2πnt​)cos(λ2πx​).  Which of the following is NOT correct :

Official previous-year question

Held on 4 Apr 2024 · Verified 6 Jul 2026.

Options

  1. A

    The dimensions of n/λn / \lambdan/λ is [T]

  2. B

    The dimensions of n\mathrm{n}n is [LT−1]\left[\mathrm{LT}^{-1}\right][LT−1]

  3. C

    The dimensions of xxx is [L]

  4. D

    The dimensions of nt\mathrm{nt}nt is [L]

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