For a grating with 500 lines/mm and light at 600 nm, find angle for th…

Question

For a grating with 500 lines/mm and light at 600 nm, find angle for the first-order maximum:

Accepted Answer

A. sin⁻¹(0.3)

Slit spacing d = 1/500 mm = 2 μm.
**For first order:** d sin θ = λ.
sin θ = 600 × 10⁻⁹ / (2 × 10⁻⁶) = 0.3. So θ = sin⁻¹(0.3).

Answer

sin⁻¹(0.5)

Answer

sin⁻¹(0.6)

Answer

sin⁻¹(0.9)

For a grating with 500 lines/mm and light at 600 nm, find angle for the first-order maximum: