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प्रश्न
Write true or false of the following statement.
The moon is self-luminous.
पर्याय
True
False
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उत्तर
False
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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 luminous body is
Name two natural sources of light.
Explain the difference between a transparent, a translucent, and an opaque medium. Give two examples of each.
Can a transparent medium form an image? Explain your answer.
Answer the following.
List four natural sources of light.
Mirrors change the direction of light that fall on them.
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 |
If the energy of incident beam and the scattered beam is the same, then the scattering of light is called as ______ scattering.
Observe the picture given in the following figure carefully.
A patch of light is obtained at B, when the torch is lighted as shown. Which of the following is kept at position A to get this patch of light?
