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प्रश्न
Write true or false of the following statement.
We can see an object through an opaque medium.
पर्याय
True
False
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उत्तर
False
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संबंधित प्रश्न
Match the following
| (a). A light ray passes from air to glass | (1) . speeds up |
| (b). A light ray passes from glass to water | (2). reflects red light |
| (c). Virtual image | (3). primary colours |
| (d). Red rose | (4). plane mirror |
| (e). Red, green, and blue | (5). slows down |
Fill in the blank.
Light gives us the sensation of ................
List two artificial sources of light.
What is a transparent medium? Give two examples.
What do we call a substance through which we cannot see light? Give an example of such a substance.
Answer the following.
Distinguish between transparent, translucent, and opaque objects.
Light travels only in a______ It is because of this property that______ are formed.
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 VB, VG, VR be the velocity of blue, green, and red light respectively in a glass prism, then which of the following statement gives the correct relation?
What happens to light when it gets dispersed? Give an example.
