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प्रश्न
Answer the following.
Write down five man-made sources of light.
एका वाक्यात उत्तर
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उत्तर
Electric bulb, torch, an oil lamp, fluorescent tube, candle.
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संबंधित प्रश्न
Fill in the blank.
Moon is a .................. body.
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Light travels in a ................. path.
Select the correct alternative.
The luminous body is
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Substance which don’t allow light to pass through them,
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The brightness of light is measured in ...................
Write true or false
The moon has its own light.
Write true or false
The earth has its own light.
Answer the following.
Differentiate between luminous and non-Luminous objects.
When light passes through a prism, it gets separated into ______ colours.
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 |
