Light passes from medium one ( v₁ ) to medium two ( v₂ ). If v₁

Question

Light passes from medium one ( v₁ ) to medium two ( v₂ ). If v₁ < v₂ then at the boundary A) f increases ,$\lambda$ decreases. B) f does not change,$\lambda$ increases. C) f decreases,$\lambda$ increases. D) f does not change,$\lambda$decreases.

Quizplus · Accepted Answer

When light passes from a medium with a lower speed to a medium with a higher speed, the frequency remains the same (f does not change); however, wavelength increases (F1F1F1S1λF1F1F10 increases). According to Snell's law, when light passes from a medium with a lower speed to a medium with a higher speed, it is bent away from the normal, resulting in a decrease in f and an increase in λ. Therefore, the correct choice is C.

Light Passes from Medium One ( V1 ) to Medium λ\lambdaλ

Light Passes from Medium One ( V₁ ) to Medium $\lambda$