Question

Total internal reflection may take place if light is passing from

• A. water to glass
• B. water to air
• C. glass to air
• D. glass to water

Answer 1

Answer: (B), (C), (D)

water to air
glass to air
glass to water

Total internal may occur only if light is travelling from denser to rarer medium.

So when light travels from water to air, glass to air and glass to water, their may be total internal reflection. Refractive index of glass is greater than of water.