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प्रश्न
Why do objects in a room become visible even if sunlight does not enter it?
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उत्तर
When the light falls on an object, it scatters even if the sunlight does not enter a room. due to scattered light., the object becomes visible.
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संबंधित प्रश्न
What is light? Define it.
List two artificial sources of light.
From among the following objects, list out the opaque, translucent, and transparent bodies in the space provided below:
A glass strip, an ordinary paper, greased paper, tracing paper, polythene sheet, wooden piece, steel plate, glycerine, kerosene oil, mustard oil, grounded glass, stone, book, water, and milk.
Opaque Transparent Translucent
Fill in the blank
There are ........... and man-made ............ of light.
Write true or false
The earth has its own 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 |
_______ is the natural source that stimulates sight and makes things visible.
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.
