Refraction through Glass Plates

Hard Physics Optics

A parallel beam of light passes through two identical glass plates that are separated by a small air gap. Each glass plate has a refractive index of 1.5, and the air gap has a refractive index of approximately 1.0. When light enters the first glass plate, it experiences refraction and then proceeds to the air gap before striking the second glass plate. Which of the following statements accurately describes the behavior of the light as it moves through this system?

The light will bend away from the normal when exiting the first glass plate.

The speed of light increases as it enters the glass plates.

Total internal reflection will occur at the interface between the air gap and the second glass plate.

The light will bend toward the normal after entering the air gap.

Hint

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