Question

2
46. In a Fraunhofer diffraction at a single si
d with incident light of wavelength 5500 A
minimum is observed at angle of 30
secondary maximum is observed at an a
equal to​

Answer 1

Answer:

In a fraunhofer diffraction by single slit of width d with incident light of wavelength 5500 Å the first minimum is observed at angle of 30°. The ...

Top answer · 1 vote

The correct option is (B) sin–1(3/4) Explanation: First minimum occurs at θ then sin θ = (λ/a) ∴ sin 30 = (λ/a) i.e. (λ/a) = (1/2) (1) ...