Question

A certain transverse sinusoidal wave of wavelength 20 cm is moving in the positive x direction. The transverse velocity of the particle at x = 0 as a function of time is shown. The amplitude of the motion is:

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

From the graph, $V_{max}=5\frac{cm}{s}$ and the Time period T = 4 s
$V_{max}=A\omega =5\Rightarrow A\frac{2\pi }{4}=5\Rightarrow A=\frac{10}{\pi }cm$