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प्रश्न
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
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उत्तर
(a) A dentist uses CONCAVE MIRROR.
(b) Convex mirror
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal focus
We can obtain an enlarged and erect image by a convex mirror.
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What name is given to the distance between spherical mirror and carbon paper?
A student obtained a sharp image of a burning candle, placed at the farther end of a laboratory table, on a screen using a concave mirror. For getting better value of focal length of the mirror, the subject teacher suggested him for focusing a well illuminated distant object. What should the student do?
(A) He should move the mirror away from the screen.
(B) He should move the mirror slightly towards the screen.
(C) He should move the mirror as well as the screen towards the newly selected object.
(D) He should move only the screen towards the newly selected object.
Upto what maximum distance from the pole the image in a convex mirror can be obtained? what will be the location of object then ?
Define the following term:
convex mirror
Define the following term in relation to concave mirror.
Focal length
The boxes in figure (a, b, c) represent mirrors; insert a mirror which will reflect the incident ray as shown in the diagram.
The image formed in a plane mirror is always inverted.
The distance from the center of curvature of the mirror to the pole is called the focal length of the mirror.
