Question

A wave travelling in the $+ve$ x-direction having displacement along y-direction as 1 m, wavelength $2\pi m$ and frequency of $\frac{1}{\pi }Hz$ is represented by

• A. $y=\sin (x-2t)$
• B. $y=\sin (2\pi x-2\pi t)$
• C. $y=\sin (10\pi x-20\pi t)$
• D. $y=\sin (2\pi x+2\pi t)$

Answer 1

The correct option is A $y=\sin (x-2t)$