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प्रश्न
Tick the correct answer.
Light is a font of
पर्याय
Work
Energy
Power
None of these
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उत्तर
Energy
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संबंधित प्रश्न
Write true or false of the following statement.
We can see an object through an opaque medium.
Select the correct alternative.
The natural source of light is
Explain the difference between a transparent, a translucent, and an opaque medium. Give two examples of each.
What do we call a substance through which we cannot see light? Give an example of such a substance.
Can a transparent medium form an image? Explain your answer.
Why do objects in a room become visible even if sunlight does not enter it?
Tick the correct answer
Glass is
Fill in the blank
A ............. is formed when the path of light is obstructed by an ..............
In going from a rarer to denser medium, the ray of light bends ______.
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 |
