Manipal Entrance Test 2015 Physics Paper

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Question : 18 of 50

Marks: +1, -0

A sinusoidal wave travelling in the positive direction on stretched string has amplitude 20‌cm, wavelength 1m and wave velocity 5m∕s. At x=0 and t=0, it is given that y=0 and

dy

dt

<0. Find the wave function y(x,t)

y(x,t)=(0.02m)‌sin[(2πm−1)x+(10πs−1)t]‌m
y(x,t)=(0.02m)‌cos[(10πm−1)t+(2πs−1)x]‌m
y(x,t)=(0.02m)‌sin[(2πm−1)x−(10πs−1)t]‌m
y(x,t)=(0.02m)‌sin[(πm−1)x+(5πs−1)t]‌m

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