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

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

A

Positive x direction with frequency 1 Hz and wavelength `lambda =0.2 m`

B

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

C

negative x direction with frequency 1 Hz

D

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

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The correct Answer is:
B
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