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प्रश्न
Give any two applications of a concave and convex mirror.
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उत्तर
- Concave mirrors:
- Concave mirrors are used while applying make–up or shaving, as they provide a magnified image.
- They are used in torches, search lights, and head lights as they direct the light to a long distance.
- Convex mirrors:
- Convex mirrors are used in vehicles as rearview mirrors because they give an upright image and provide a wider field of view as they are curved outwards.
- They are found in the hallways of various buildings including hospitals, hotels, schools, and stores. They are usually mounted on a wall or ceiling where hallways make sharp turns.
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संबंधित प्रश्न
With the help of an appropriate ray diagram, state the sign conventions for reflection by a spherical mirror.
State two positions in which a concave mirror produces a magnified image of a given object. List two differences between the two images.
Name the type of mirror used in the following situation:
Headlights of a car
Support your answer with reason.
What kind of mirror can have a focal length of, −20 cm?
Which of the following are concave mirrors and which convex mirrors?
Shaving mirrors, Car headlight mirror, Searchlight mirror, Driving mirror, Dentist’s inspection mirror, Torch mirror, Staircase mirror in a double-decker bus, Make-up mirror, Solar furnace mirror, Satellite TV dish, Shop security mirror.
A real image of an object is to be obtained. The mirror required for this purpose is:
(a) convex
(b) concave
(c) plane
(d) either convex or concave
Name the lens which can concentrate sun's rays to a point and burn a hole in a piece of paper.
Why does obtaining the image of the sun on paper with the help of a concave mirror burn the paper?
Concave mirrors are used by dentists to examine teeth. Why?
Between which two points of a concave mirror should an object be placed to obtain a magnification of -2?
