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प्रश्न
उत्तर
The parallel beam of light on reflection by a concave mirror converges at a point on the principal axis, midway between pole and the centre of curvature. This point is called the principal focus
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संबंधित प्रश्न
Draw a diagram to show the reflection of a light ray incident normally on a plane mirror.
Write three characteristics of the image formed by a plane mirror?
The image formed by a plane mirror is :
Two plane mirrors are placed making an angle θ° in between them. For an object placed in between the mirrors, if angle is gradually increased from 0° to 180°, how will the number of images change : increase, decrease or remain unchanged?
By drawing a neat diagram define the following:
Mirror
Draw a neat two ray diagram for the formation of images in two plane mirrors, when mirrors are at right angles to each other.
Parallel rays are incident:
- on regular surface and
- on irregular surface. In what respect do reflected rays in (1) differ from those of (2)?
Select the correct option:
If an incident ray passes through the centre of curvature of a spherical mirror, the reflected ray will:
