Question

In practical applications [like in car – headlights] concave mirrors are of __________ shape​

Answer 1

Answer: When the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances) and at infinity they are approximately parallel. Hence, concave mirrors are used in the headlights of vehicles.

Answer 2

Answer:

Concave mirrors are of  Spherical shape​

Explaination:

• Spherical mirror: The mirror which has a spherical reflecting surface is called a spherical mirror.
• Concave mirror or Spherical 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 longer distances.      

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