A green light is incident from the water to the air - water interface at the critical angle (θ). Select the correct statement.
Options

Question

A green light is incident from the water to the air - water interface at the critical angle (θ). Select the correct statement.

G1 Physics · Accepted Answer

Derived solution: Step 1: Apply Snell’s law n₁sin i = n₂sin r. For total internal reflection the ray must go from denser to rarer medium and sin C = n₂/n₁. Step 2: Substitute the values given in the question and apply the geometry/sign convention shown. Step 3: On simplification the result is The spectrum of visible light whose frequency is less than that of green light will come out to the air medium.. Therefore the correct option is D.