CUET Preparation Today
A parallel beam of monochromatic light of wavelength 900 nm passes through a long slit of width 0.4 mm. The angular divergence in which most of the light is diffracted, is |
$8.9 × 10^{-3} rad$ $7.2 × 10^{-3} rad$ $3.6 × 10^{-3} rad$ $4.5 × 10^{-3} rad$ |
$4.5 × 10^{-3} rad$ |
The correct answer is Option (4) → $4.5 × 10^{-3} rad$ |
