Question

Find the angular dispersion produced by a prism of angle 5°. Given that uv = 1.65 and ur = 1.55

Answer 1

Answer:

ANGULAR DISPERSION OF PRISM ( ∅ ) = 0.5°

Explanation:

★ RAY OPTICS ★

★ GIVEN ;

» Refractive Index of Red Light ( μr ) = 1.55

» Refractive Index of Violet Light ( μv ) = 1.65

» Refractive Angle of Prism ( Â ) = 5 °

★ ANGULAR DISPERSION OF PRISM ( ∅ ) = ???

_____ [ BY USING FORMULA ] ______

★ ≈ [ ∅ = ( μV - μR ) Â ] ≈ ★

» ∅ = ( 1.65 - 1.55 ) × 5

» ∅ = ( 0.1 ) × 5

★ ANGULAR DISPERSION ( ∅ ) = 0.5 ° ★

______________________________________

ANSWER :- Angular Dispersion of Prism with Refractive Angle 5° is ;

[ ∅ = 0.5° ]