At a fixed position

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

At a fixed position

x=0.02\,\text{m}

, a plane wave has the form

E(x,t)=E_0\sin(kx-\omega t)

. If

\omega = \pi\times10^{9}\,\text{rad\,s}^{-1}

, what is the phase difference between the instants

t_1 = 2.0\,\text{ns}

and

t_2 = 5.0\,\text{ns}

? (a)

2\pi\,\text{rad}

(b)

\pi\,\text{rad}

(c)

3\pi\,\text{rad}

(d)

6\pi\,\text{rad}