Question

When blue light of wavelength 450 nm falls on a single slit, the first dark bands on either side of center are separated by 45.0

Answer 1

5.74°

Step-by-step explanation:

Using dsinθ = mλ

D= 450nm, m=1, λ= 45

We are looking for θ

450sinθ =(1)(45)

450sinθ =45

Sinθ = 45/450

Sinθ =1/10

θ = sin-1( 1/10)

That is the sin inverse of 1/10

θ = 5.74°