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प्रश्न
Select the correct alternative.
The luminous body is
पर्याय
a lighted bulb
earth
noon
table
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उत्तर
a lighted bulb
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संबंधित प्रश्न
Can light travel in vacuum?
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.
Fill in the blank
Light consists of .............. colours.
Write true or false
The earth has its own light.
When a ______ object comes in the way of light, light passes ______ it.
Match the following.
| Group A | Group B |
| (a) Mirror | (1) Non-luminous |
| (b) Firefly | (2) Inverted image |
| (c) Pinhole camera | (3) Reflection |
| (d) Moon | (4) Luminous |
Choose the translucent substance from the following
Velocity of light is greater in denser medium than in rarer medium
Using a pinhole camera a student observes the image of two of his friends, standing in sunlight, wearing yellow and red shirt respectively. What will be the colours of the shirts in the image?
