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प्रश्न
Upto what maximum distance from a concave mirror, the image can be obtained? What will be the location of object for it?
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उत्तर
The maximum distance that can be obtained in concave mirror is infinity. For this case the object has to be at focus.
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संबंधित प्रश्न
A student focused the Sun rays using an optical device 'X' on a screen S as shown.
From this it may be concluded that the device 'X' is a (select the correct option)
(A) Convex lens of focal length 10 cm.
(B) Convex lens of radius of curvature 20 cm.
(C) Convex lens of focal length 20 cm.
(D) Concave mirror of focal length 20 cm.
We can obtain a real, enlarged and inverted image by a concave mirror.
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of carbon paper for some time, a hole is burnt in the carbon paper.
- What is the nature of spherical mirror?
- Why is a hole burnt in the carbon paper?
- At which point of the spherical mirror the carbon paper is placed?
- What name is given to the distance between spherical mirror and carbon paper?
- What is the advantage of using a carbon paper rather than a white paper?
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
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A student traces the path of a ray of light passing through a rectangular slab.
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For measuring the angle of incidence, he must position the protractor in the manner shown in the figure:
Spherical mirrors are one form of ______ mirrors.
Define the radius of curvature.
