A sound wave of frequency travels through air at with amplitude

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

Problem

A sound wave of frequency

1700\,\text{Hz}

travels through air at

340\,\text{m\,s}^{-1}

with amplitude

1.5\times10^{-3}\,\text{m}

. At

x=0

and

t=0

, the displacement is zero and is increasing with time. Which equation represents this wave? (a)

y = 1.5\times10^{-3}\,\sin(10\pi x - 3400\pi t)

(b)

y = 1.5\times10^{-3}\,\sin(3400\pi x + 10\pi t)

(c)

y = 1.5\times10^{-3}\,\sin(10\pi x + 3400\pi t)

(d)

y = 1.5\times10^{-3}\,\sin(10\pi x + 1700\pi t)