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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
Can light travel in vacuum?
Write true or false of the following statement.
Light travels in a straight-line path.
Fill in the blank.
Light travels in a ................. path.
Does the flame of a gas stove emit light?
Tick the correct answer.
A tube light is a
Fill in the blank
There are ........... and man-made ............ of light.
Write true or false
The moon has its own light.
Answer the following.
Distinguish between transparent, translucent, and opaque objects.
Match the following.
| 1. | Ratio of height of image to height of object. | Concave mirror |
| 2. | Used in hairpin bends in mountains. | Total internal reflection |
| 3. | Coin inside water appearing slightly raised. | Magnification |
| 4. | Mirage | Convex mirror |
| 5. | Used as Dentist’s mirror. | Refraction |
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
