Question

The equation for complete destructive interference for diffraction from a single-slit is:

a) w sinθ=mλ, where m = 0, 1, 2, ...
b) w sinθ=mλ, where m = 1, 2, 3, ...
c) d sinθ=mλ, where m = 0, 1, 2, ...
d) d sinθ=mλ, where m = 1, 2, 3, ...
e) d sinθ=(m+1/2)λ, where m = 0, 1, 2, ...
f) w sinθ=(m+1/2)λ, where m = 1, 2, 3, ...

Answer 1

Assuming that w is the width of the slit, the answer is b.

Answer 2

Thanks a lot!