Lesson eLearning

When a beam of light passes from air into a glass block, how does its direction change?

easy MCQ 1 mark Class 8 · Science · Light
  1. The light is refracted and bends toward the normal.
  2. The light is refracted and bends away from the normal.
  3. The light passes through unchanged.
  4. The light is absorbed by the glass.
Answer
The light is refracted and bends toward the normal.

The correct answer is The light is refracted and bends toward the normal. — Conclude that the light is refracted, bending toward the normal.

Step-by-step solution

  1. Identify the two media: air (n≈1.0) and glass (n≈1.5).
  2. Apply the refraction principle: light bends toward the normal when going from a medium of lower refractive index to one of higher index.
  3. Conclude that the light is refracted, bending toward the normal.
Common mistake: Assuming light always bends away from the normal.

Concept tested: Refraction of light

Published · How this solution was prepared and checked

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