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Q: What is the mirror used in the headlight of vehicles?
  • A. plane mirror
  • B. plane-convex mirror
  • C. convex mirror
  • D. concave mirror
Correct Answer: Option D - A concave mirror is a spherical mirror in which the reflection of light is on its the concave surface i.e the curved surface. The headlight of the vehicles uses a concave mirror.
D. A concave mirror is a spherical mirror in which the reflection of light is on its the concave surface i.e the curved surface. The headlight of the vehicles uses a concave mirror.

Explanations:

A concave mirror is a spherical mirror in which the reflection of light is on its the concave surface i.e the curved surface. The headlight of the vehicles uses a concave mirror.