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Question
Draw suitable diagrams to illustrate how a beam of light incident parallel to the principal axis is reflected by:
(a) a concave mirror, and (b) a convex mirror
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Solution
(a) Concave mirror
(b) Convex mirror
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RELATED QUESTIONS
| Column I | Column II | Column III | |
| 1 | Dispersion | Long-sightedness | Twinkling of stars |
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The angle of reflection is equal to the angle of incidence:
(a) always
(b) sometimes
(c) under special conditions
(d) never
A ray of light goes from water into air. Will it bend towards the normal or away from the normal?
In which material do you think light rays travel faster-glass or air?
When a ray of light travelling in glass enters into water obliquely:
(a) it is refracted towards the normal
(b) it is not refracted at all
(c) it goes along the normal
(d) it is refracted away from the normal
Water is optically denser than glass.
Water is optically .......... than air.
A small air bubble in a glass block when seen from above appears to be raised because of ______.
Why a pencil partly immersed in water appears to be bent at the water surface.
When a ray of light travels normal to the given surface, then the angle of refraction is ______.
