A plane progressive wave is represented by \(y 2 \sin 100 t 0.2 x\) where all the symbols have their usual meanings. What is the velocity of the wave?

A. \( 500 \mathrm{~m} \mathrm{~s}^{-1} \)  
B. \( 400 \mathrm{~m} \mathrm{~s}^{-1} \)
C. \( 200 \mathrm{~m} \mathrm{~s}^{-1} \)
D. \( 100 \mathrm{~m} \mathrm{~s}^{-1} \)

Show Answer Show Explanation

Correct Answer: A