Verified Solution • 2025–26 Session moderate

QAIPMT-2008-Ph-2249: NEET 2008 Physics - Class 11 AIPMT-2008-Ph-2249 Solution: The wave described by \(y=0.25 (10 x-2 t)\), where x and y are…

The wave described by y=0.25sin⁡(10πx−2πt)y=0.25\sin(10\pi x-2\pi t), where x and y are in metres and t in seconds, is a wave travelling along the

Multiple Choice Options

  • A +ve x direction with frequency 1 Hz and wavelength λ=0.2\lambda=0.2 m.
  • B -ve x direction with amplitude 0.25 m and wavelength λ=0.2\lambda=0.2 m.
  • C -ve x direction with frequency 1 Hz.
  • D +ve x direction with frequency π\pi Hz and wavelength λ=0.2\lambda=0.2 m.

Step-by-Step Verified Solution

y = 0.25sin(10 � x � 2 � t) y max = 0.25 k = 2 � _ = 10 � _ _ = 0.2 m _ = 2 � f = 2 � _ f = 1 H z The sign is negative inside the bracket. Therefore this wave travels in the positive x-direction.

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