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प्रश्न
Tick the correct answer.
The natural source of light is
पर्याय
Sun
Electric lamp
Candle flame
Kerosene lamp
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उत्तर
Sun
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संबंधित प्रश्न
How do we see objects around us ?
Match the following columns
| Column A | Column B |
| a. Wooden block | i. new moon's day |
| b. Sun | ii. rectilinear propagation of light |
| c. Umbra | iii. opaque body |
| d. Eclipse | iv. luminous body |
| e. Solar eclipse | v. complete dark park |
Can a transparent medium form an image? Explain your answer.
Name a few living things which emit light.
Fill in the blank
The brightness of light is measured in ...................
Write true or false
The stars have no light.
A ______ is a natural source of light.
Describe the pictures.
A ray of light passes from one medium to another medium. Refraction takes place when angle of incidence is ______.
Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively
