KEAM 2018 Physics and Chemistry Paper

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Question : 19 of 120

Marks: +1, -0

A wave pulse in a string is described by the equation y1=

5

(3x−4t2)+2

and another wave pulse in the same string is described by y2=

−5

(3x+4t−6)2+2

. The values of y1,y2‌ans‌x are in meters and t in seconds.

y1 travels along –x-direction and y2 along + x-direction
both y1‌and‌y2 travel along –x-direction
both y1‌and‌y2 travel along + x-direction
at x= 1 m, y1‌and‌y2 always cancel
at time t = 1 s, y1‌and‌y2 exactly cancel everywhere

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