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Question: Answered & Verified by Expert
In a transverse wave the distance between a crest and neighbouring trough at the same instant is $4.0 \mathrm{~cm}$ and the distance between a crest and trough at the same place is $1.0 \mathrm{~cm}$. The next crest appears at the same place after a time interval of $0.4 \mathrm{~s}$. The maximum speed of the vibrating particles in the medium is:
PhysicsWaves and SoundJEE MainJEE Main 2013 (25 Apr Online)
Options:
  • A
    $\frac{3 \pi}{2} \mathrm{~cm} / \mathrm{s}$
  • B
    $\frac{5 \pi}{2} \mathrm{~cm} / \mathrm{s}$
  • C
    $\frac{\pi}{2} \mathrm{~cm} / \mathrm{s}$
  • D
    $2 ~\pi \mathrm{~cm} / \mathrm{s}$
Solution:
1868 Upvotes Verified Answer
The correct answer is:
$\frac{5 \pi}{2} \mathrm{~cm} / \mathrm{s}$
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