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The wave described by y = 0.25 "sin"(10 ...

The wave described by `y = 0.25 "sin"(10 pi x - 2pit)` , where x and y are in metres and t in seconds , is a wave travelling along the:

A

negative x-direction with frequency 1 Hz

B

Postive x- direction with frequency pi Hz and wavelength` lambda = 0.2 m`

C

positive x- direction whith frequency 1 Hz and wavelength `lambda=0.2 m`

D

negative x - direction with amplitude 0.25 m and wavelength `lambda = 0.2 m`

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The correct Answer is:
c
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