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प्रश्न
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उत्तर
Three characteristics of light are:-
(a). Light waves can travel through a vacuum.
(b). Light waves are transverse waves.
(c). The velocity of light in a vacuum is 3 x 108 m/s.
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संबंधित प्रश्न
State the characteristics of the image formed by a plane mirror.
Fill in the blank
We are able to see the objects around us due to _________, reflection.
The following diagram shows a point object O placed in front of a plane mirror. Take two rays from the point O and show how the image of O is formed and seen by the eye.
With the help of diagrams, explain the difference between the regular and irregular reflection.
State two advantages and two disadvantages of the reflecting periscope.
The moon ______ sun light.
Match the following:
| 1. | Vegetable oil | a. | Transparent |
| 2. | Glass | b. | Translucent |
| 3. | Wood | c. | Waterproof |
| 4. | Aluminum foil | d. | Opaque |
What is Translucent objects? Give an example.
