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प्रश्न
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उत्तर
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संबंधित प्रश्न
Suppose you are in a dark room. Can you see objects in the room? Can you see objects outside the room? Explain.
The perpendicular to the mirror at the point of incidence is called ______.
If the angle between the plane mirror and the incident ray is 40∘, what are the angles of incidence and reflection?
State three ways in which the image formed in a plane mirror differs from the image formed in a pin hole camera.
State two advantages and two disadvantages of the reflecting periscope.
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.
Find the odd one.
glass bottle, exam pad, paper plate, wooden board
Match the following:
| 1. | Vegetable oil | a. | Transparent |
| 2. | Glass | b. | Translucent |
| 3. | Wood | c. | Waterproof |
| 4. | Aluminum foil | d. | Opaque |
A light ray enters from medium A to medium B as shown in Figure 10.2. The refractive index of medium B relative to A will be
