Question

The equation of a transverse wave is given by $y=10sin\pi (0.01x-2t)$ where x and y are in cm and t is in second. its frequency is

• A. $10se{c}^{-1}$
• B. $2se{c}^{-1}$
• C. $1se{c}^{-1}$
• D. $0.01se{c}^{-1}$

Answer 1

The correct option is C $1se{c}^{-1}$

$y=10\sin \left(0.01\pi x-2\pi t\right)$

$\omega =2\pi =2\pi t$

$=t=1{\sec }^{-1}$

Hence$,$ option $\left(C\right)$ is correct$.$