A single slit is illuminated by light of wavelength 6000 Å. The slit width is 0.1 cm and the screen is placed 1 m away. The angular position of `10^(th)` minimum in radian is

Options

A. `2 xx 10^(-4)`
B. `6 xx 10^(-3)`
C. `3 xx 10^(-3)`
D. `1 xx 10^(-4)`

Answer

B

Explanation

Here, `n=10,lambda=6000 Ã…=6xx10^(-7)m,`
`d=0.1cm=10^(-3)m`
Angular position of `10^(th)` minima,
`theta=(n lambda)/(d)=(10xx6xx10^(-7))/(10^(-3))=6xx10^(-3)`rad