Question

A white ray is incident obliquely on a glass slab. Which of the following will occur with the first refraction?

• A. Deviation
• B. Total reflection
• C. Dispersion
• D. All of these

Hint:

When light passes through a glass slab, deviation, dispersion, and total internal reflection can occur depending on the angle of incidence.

Answer 1

The Correct Option is D

Step 1: Understanding the effects of light refraction. When a white light ray is incident obliquely on a glass slab, the following phenomena occur:
- Deviation: The light ray bends due to a change in medium.
- Total internal reflection: If the angle exceeds the critical angle, total internal reflection may occur.
- Dispersion: White light separates into its constituent colors due to different refractive indices.
Step 2: Explanation of correct answer. All of these phenomena can occur depending on the conditions, making (D) the correct choice.