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प्रश्न
State two uses of a plane mirror.
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उत्तर
It is used as :
(i) Looking glass
(ii) In periscopes.
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संबंधित प्रश्न
Draw a figure showing the following.
- Incident Ray
- Normal
- Angle of incidence
- Angle of reflection
- Point of incidence
- Reflected ray
With the help of diagrams, explain the difference between the regular and irregular reflection.
Figure shows an incident ray AO and the normal ON on a plane mirror. The angle which the incident ray AO makes with mirror is 30°. (a) Find the angle of incidence. (b) Draw the reflected ray and then find the angle between the incident and reflected rays.
Give two uses of convex mirror.
Dull materials reflect light.
In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?
A ray of light is travelling in a direction perpendicular to the boundary of a parallel glass slab. The ray of light ______.
Match the following:
| 1. | Vegetable oil | a. | Transparent |
| 2. | Glass | b. | Translucent |
| 3. | Wood | c. | Waterproof |
| 4. | Aluminum foil | d. | Opaque |
