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प्रश्न
Tick the correct answer.
A tube light is a
पर्याय
Hot source
Cold source
Incandescent source
None of these
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उत्तर
Hot source
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संबंधित प्रश्न
Can light travel in vacuum?
What do we call a body that shines on its own?
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.
What do we call a substance through which light passes? Give an example of such a substance.
Does the flame of a gas stove emit light?
Choose the translucent substance from the following
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 |
Why are traffic signals red in colour?
Boojho made light from a laser torch fall on a prism. Will he be able to observe a band of seven colours? Explain with a reason.
