Question.
Name the type of mirror used in the following situations
(a) Headlights of a car.
(b) Side/rear-view mirror of a vehicle.
(c) Solar furnace.
Support your answer with reason.
Name the type of mirror used in the following situations
(a) Headlights of a car.
(b) Side/rear-view mirror of a vehicle.
(c) Solar furnace.
Support your answer with reason.
solution:
(a) Concave mirror.
Concave mirror is used in the headlights of a vehicle because it produces powerful and almost parallel beam of light when the light source is placed at its principal focus.
A bulb placed at the focus of a concave mirror produces a strong, almost parallel beam
(b) Convex mirror.
Convex mirror is used in rear-view mirror of a vehicle. Convex mirror gives a virtual, erect, and diminished image of the object placed in front of it. Because of this, it has a wide field of view. It enables the driver to see most of the traffic behind him.
A convex mirror has a wide field of view
(c) Concave mirror.
Concave mirrors are converging mirrors. That is why they are used to construct solar furnaces. Concave mirrors converge the parallel light incident on them at a single point which is called principal focus. Hence, they can be used to produce a large amount of heat at that point.
A solar furnace placed at the focus of a concave mirror
(a) Concave mirror.
Concave mirror is used in the headlights of a vehicle because it produces powerful and almost parallel beam of light when the light source is placed at its principal focus.
A bulb placed at the focus of a concave mirror produces a strong, almost parallel beam
(b) Convex mirror.
Convex mirror is used in rear-view mirror of a vehicle. Convex mirror gives a virtual, erect, and diminished image of the object placed in front of it. Because of this, it has a wide field of view. It enables the driver to see most of the traffic behind him.
A convex mirror has a wide field of view
(c) Concave mirror.
Concave mirrors are converging mirrors. That is why they are used to construct solar furnaces. Concave mirrors converge the parallel light incident on them at a single point which is called principal focus. Hence, they can be used to produce a large amount of heat at that point.
A solar furnace placed at the focus of a concave mirror