Question 5 — When the light is - Questions at the end of the chapter - Chapter 10 Class 8 - Light: Mirrors and Lenses (Curiosity)

Last updated at July 13, 2026 by

Q 5
Question

When the light is incident along the normal on the mirror, which of the following statements is true?

  • (i) Angle of incidence is 90°
  • (ii) Angle of incidence is 0°
  • (iii) Angle of reflection is 90°
  • (iv) No reflection of light takes place in this case
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Answer
Option (ii) is correct — the angle of incidence is 0°.

Explanation

  • The angle of incidence is measured from the normal.
  • Light along the normal makes a 0° angle with it.
  • So the angle of incidence (and reflection) is 0°.
Along the normal, both the angle of incidence and reflection are 0°.
← Back to concept: 10.3 What Are the Laws of Reflection?
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