Question: What is the formula for the diffraction angle in a single-slit diffraction pattern?

Options:

1. a sin(θ) = nλ
2. a sin(θ) = (n + 0.5)λ
3. a tan(θ) = nλ
4. a cos(θ) = nλ

Correct Answer: a sin(θ) = nλ

Solution:

The formula for the diffraction angle in a single-slit diffraction pattern is a sin(θ) = nλ.