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Question: Answered & Verified by Expert
A wave is represented by $x=0.4 \cos \left(8 t-\frac{y}{2}\right)$ where $x$ and $y$ are in meters and $t$ in secs. The speed of the wave is
PhysicsWaves and SoundAP EAMCETAP EAMCET 2020 (07 Oct Special)
Options:
  • A $0.5 \mathrm{~m} . \mathrm{s}^{-1}$
  • B $8 m \cdot s^{-1}$
  • C $16 \mathrm{~m} \cdot \mathrm{s}^{-1}$
  • D $0.1 \mathrm{~m} . \mathrm{s}^{-1}$
Solution:
1567 Upvotes Verified Answer
The correct answer is: $16 \mathrm{~m} \cdot \mathrm{s}^{-1}$
No solution. Refer to answer key.

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