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प्रश्न
What is a transparent medium? Give two examples.
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उत्तर
A medium that allows the passage of light through it easily is called a transparent medium.
Examples: glass, air, water, etc.
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संबंधित प्रश्न
Name a few living things which emit light.
The sun and ______ are the natural sources of light.
Answer the following.
List four natural sources of light.
A ______ is an artificial source of light.
Write whether of the following objects are luminous or non-luminous.
| Object | Luminous/Non-luminous |
| A book | |
| A burning candle | |
| A wax cloth | |
| A pencil | |
| A pen | |
| A light bulb | |
| A tyre | |
| A torch |
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 |
Write about two everyday situations that tell you that light travels in a straight line.
State whether true or false. If false, correct the statement.
If a ray of light passes obliquely from one medium to another, it does not suffer any deviation.
A ray of the light incident along normal to the mirror ______ its path.
A student observes a tree given in the following figure through a pin hole camera. Which of the diagrams given in the following figure (a) to (d), depicts the image seen by her correctly?
