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प्रश्न
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
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उत्तर
(a) Concave mirror
(b) Concave mirror
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संबंधित प्रश्न
What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror or convex 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?
Draw a ray diagram to show the formation of image by a concave mirror for the object beyond its centre of curvature. State three characteristics of the image.
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
The boxes in figure (a, b, c) represent mirrors; insert a mirror which will reflect the incident ray as shown in the diagram.
What is the relationship between the focal length and radius of curvature?
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
For a spherical mirror, ______ is true.
