NEET Physics Waves Questions Solved

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NEET - 2013

A wave travelling in the positive x-direction having displacement along y-direction as 1m, wavelength 2π m and frequency of 1/π Hz is represented by

(a) y=sin(x-2t)

(b) y=sin(2πx-2πt)

(c) y=sin(10πx-20πt)

(d) y=sin(2πx+2πt)

(a) Given a=1m

As y=a sin(kx-ωt)

=sin(2π/2π x-2π x 1/π t)

=sin (x-2t)

Difficulty Level:

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