Question

Which mirror is used in head light of a car and why? Select the most appropriate answer. *

a)convex mirror because it can diverge the light when the bulb is placed in the centre
b)concave mirror and the bulb is placed in the focus and produces slightly diverging parallel rays
c)convex mirror because it reflect the light to infinity
d)concave mirror because it can reflect the light of bulb to infinity

Answer 1

Answer:

b)concave mirror and the bulb is placed in the focus and produces slightly diverging parallel rays

Explanation:

Concave mirror is used in headlights of vehicles, because when the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances). A concave mirror is a converging mirror as opposed to a convex mirror which is a diverging mirror. A convex mirror always diverges the rays of light falling onto it. Therefore, it is not used as headlights in cars.

Answer 2

Convex mirror because it can diverge the light when the bulb is placed in the centre

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