Question

Uses of spherical Mirror with example .

Answer 1

USES OF SPHERICAL MIRRORS


Practical Applications or Uses of Spherical Mirrors

       Following are the important uses of spherical mirrors:

The concave mirrors are commonly used as shaving mirrors because when we see our face in the concave mirror then an enlarged and erect image is formed which helps in smooth shaving.


A concave mirror is used as the reflectorin search lights, head lights of motor vehicles, solar cookers, torches and in table lamps.
A concave mirror is also used as head mirror by doctors to examine the retina of the eye, ear and throat.
A convex mirror is used in automobiles such as scooters, trucks and buses as rear view mirror to see the traffic behind the vehicle. The reason for it is that a convex mirror has a much wider field of view and the images formed are smaller and erect.


A convex mirror is also used as a reflector in street lamps.
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Answer 2

Concave mirrors: 

1. A concave mirror is used as a reflector in torches, search lights, head lights of motor vehicles etc. to get powerful parallel beam of light. 
2. A concave mirror is used as doctor’s head mirrors to focus light on the body parts like eyes, ears, nose, throat etc., to be examined. 
3. A concave mirror is also used as a shaving mirror/makeup mirror, as it can form erect and magnified image of the face. 
4. The dentists use concave mirror to observe large images of the teeth of the patient. 
5. Large concave mirrors are used to concentrate sunlight to produce heat in solar cookers, solar furnace etc. 
6. Large concave mirrors are also used in reflecting type telescope. 

Convex mirror: 

1. A convex mirror is used as a reflector in street lamps. As a result, light from the lamp diverges over a large area. 
2. A convex mirror is used by drivers of automobile as a real view mirror. These mirrors are fitted on the sides of the vehicles enabling the driver to see traffic behind for safe driving. This is because 

(i) A convex mirror produced an erect image of the object. 

(ii) Size of image formed by convex mirror is much smaller than the object. 

(iii) Convex mirrors have a wider field of view as they are curved outwards. Therefore, convex mirrors enable the driver to view much larger area than would be possible with a plane mirror.


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