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प्रश्न
State the two kinds of spherical mirror and distinguish them with the aid of proper diagrams.
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उत्तर
The kinds of SPHERICAL MIRRORS are :
- CONCAVE MIRROR
- CONVEX MIRROR
CONCAVE MIRROR: Silvered surface is away from the centre of curvature and focal length is negative, i.e. reflecting surface is towards the centre of curvature.
CONVEX MIRROR: Silvered surface is towards the centre of curvature and focal length is positive i.e. reflecting surface is away from the centre of curvature. It always forms diminished (small) image which is VIRTUAL.
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संबंधित प्रश्न
What type of image is formed:
- in a plane mirror?
- on a cinema screen?
Complete the following diagrams in Figure by drawing the reflected rays for the incident rays 1 and 2.
(a) When a concave mirror is used as a shaving mirror, where is the person's face in relation to the focus of mirror?
(b) State three characteristics of the image seen in part (a).
Define linear magnification produced by a mirror?
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
For a spherical mirror, ______ is true.
The image formed in a plane mirror is always inverted.
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 ______.
