Question

A light ray passes from air (refractive index = 1) into water (refractive index = 1.33). If the angle of incidence is 30°, what is the angle of refraction in water?

• A. \( 22.2^\circ \)
• B. \( 30.0^\circ \)
• C. \( 23.0^\circ \)
• D. \( 17.0^\circ \)

Hint:

When light passes from a less dense medium to a more dense medium (like air to water), it bends toward the normal. Use Snell's law to calculate the angle of refraction.