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प्रश्न
Tick the correct answer
Glass is
विकल्प
Opaque
Luminous
Transparent
None of these
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उत्तर
Transparent
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संबंधित प्रश्न
Write true or false of the following statement.
The moon is a natural source of light.
Fill in the blank.
Moon is a .................. body.
Name two natural sources of light.
What do we call a substance through which light passes? Give an example of such a substance.
Tick the correct answer.
Light causes
Fill in the blank
Speed of light in vacuum is .................
Describe the pictures.
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 |
State Rayleigh’s law of scattering.
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
