Which type of mirror is used in vehicle headlights to focus light?
A
Plane mirror
B
Convex mirror
C
Cylindrical mirror
D
Concave mirror
Correct Answer: Option D — Concave mirror
Explanation:
Concave mirrors are used in vehicle headlights because they can focus and direct parallel beams of light forward efficiently. Their curved reflective surface converges light rays, producing a strong, concentrated beam for illumination.