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प्रश्न
If a spherical mirror breaks, what type of mirrors are the individual pieces?
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उत्तर
After the breakdown of the spherical mirror, each piece of the mirror is the same type of original mirror (concave/convex), as the reflective background and curvature have no differences in radius.
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संबंधित प्रश्न
A simple microscope is used by watch repairers. Give reason.
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
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?
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
Which type of spherical mirror will it provide?
A 50 cm tall object is at a very large distance from a diverging lens. A virtual, erect and diminished image of the object is formed at a distance of 20 cm in front of the lens. How much is the focal length of the lens?
A 2.0 cm tall object is placed 40 cm from a diverging lens of focal length 15 cm. Find the position and size of the image.
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
Name the kind of mirror used to obtain:
A virtual and enlarged image
Name the kind of mirror used to obtain:
A real and diminished image.
What is meant by magnification? Write its expression. What is its sign for the (a) real (b) virtual, image?
Answer the following question:
Distinguish between the convex mirror and the concave mirror.
Define the following term:
convex mirror
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
Geometric centre of the spherical mirror is ______.
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
A spherical mirror whose reflecting surface is curved outwards is called ______ mirror.
In normal adjustment, for a refracting telescope, the distance between objective and eye piece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be ______.
