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The equation of a wave is given by y=2 s...

The equation of a wave is given by `y=2 sin (314t-2x+ pi//2)` m, the wave length of the wave is

A

2.0 m

B

1.57 m

C

6.28 m

D

3.14 m

Text Solution

Verified by Experts

The correct Answer is:
C
We have
`y= 2 sin( 314 t- 2v + (pi)/(2))` ..(i)
On comparing from,
`y= 2asin(wt- (2xpi)/(lambda)+ phi)`
`(-2xpi)/(lambda)= -2x`
`lambda= 2pi = 2 xx 3.14 = 6.28 m`
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