The wavelength of a wave in a medium is 0.5 m. The phase difference between the oscillations at two points in the medium due to this wave is `(pi)/(5)`. What is the minimum distance between these points

Options

A. 0.05 m
B. 0.1 m
C. 0.25 m
D. 0.15 m

Answer

A

Explanation

`Deltaphi=(2pi)/(lambda)xxDeltax`
`implies Deltax=(lambda)/(2pi)xxDeltaphi=(lambda)/(2pi)xx(pi)/(5)=(0.5)/(10)=0.05`.