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प्रश्न
Define the term Principle axis.
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उत्तर
The principal axis is the straight line passing through the pole and the centre of curvature.
संबंधित प्रश्न
State the characteristics of the image formed by a plane mirror.
The reflection of light from a wooden surface is _________ reflection.
What do you understand by the Light?
State whether the following statement is true or false. If false, correct it.
If a ray of light incident on a plane mirror is such that it makes an angle of 30o with the mirror, then the angle of reflection is 60o.
State whether the following statement is true or false. If false, correct it.
The image formed in a plane mirror is the real, erect, and same size as that of the object.
When a ray of light strikes a plane mirror at an angle of 150 with the mirror, what will be the angle through which the ray will deviate? Illustrate with a ray diagram in the following figure.
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?
Match the following:
| 1. | Vegetable oil | a. | Transparent |
| 2. | Glass | b. | Translucent |
| 3. | Wood | c. | Waterproof |
| 4. | Aluminum foil | d. | Opaque |
The angle of incidence is equal to the angle of reflection for perfect reflection.
