Answer:
Explanation:
Width of slit a = 1 x 10⁻³ / 210
a = 4.76 x 10⁻⁶ m .
angle at which first order peak is formed
= λ / a (where λ is wavelength and a is width of slit)
given λ = 506 x 10⁻⁹ m
a = 4.76 x 10⁻⁶
θ = 506 x 10⁻⁹ / 4.76 x 10⁻⁶
= 106.3 x 10⁻³ radian .
first order peak is formed at an angle of 106.3 x 10⁻³ radian .
