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प्रश्न
How is a spherical mirror used to converge a beam of light at a point? Name the type of mirror used.
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उत्तर
If a parallel beam of light is incident on a concave mirror, it converges the beam to a point called focus
Type of mirror used is CONCAVE.
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संबंधित प्रश्न
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
AB and CD, two spherical mirrors, from parts of a hollow spherical ball with its centre at O as shown in the diagram. If arc AB = `1/2` arc CD, what is the ratio of their focal lengths? State which of the two mirrors will always form virtual image of an object placed in front of it and why.
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
Name the two kinds of spherical mirrors and distinguish between them.
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
How will you distinguish between a plane mirror, a concave mirror and a convex mirror, without touching them?
The erect image formed by a concave mirror is of size double the size of object. How are u and v related?
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Concave mirror
What is the focal length (f) of a mirror?
