When a wave travels in a medium the particles displacement is given by the equation
`y(x,t)=0.03sin pi (2t-0.01x)`
Where y and x are in metre and t in second. The wavelengths of the wave is

Options

A. 10m
B. 20m
C. 100m
D. 200m

Answer

D

Explanation

Comparing y(x,t)=`0.03sinpi(2t-0.01x)` with equation of wave `y=Asin2pi(t/T-x/(lambda))`
`y=0.03sin2pi(t-(0.01x)/2)`
`x/lambda=(0.01x)/2`
`lambda =2/0.01=200m`