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प्रश्न
How do we see objects around us ?
उत्तर
Objects are seen when light after striking them, returns in the same medium and reach our eyes.
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संबंधित प्रश्न
Fill in the blank.
Light travels in a ................. path.
Select the correct alternative.
The natural source of light is
Tick the correct answer.
Substance which don’t allow light to pass through them,
Fill in the blank
The Sun and .............. are the natural sources of light.
Write true or false
The earth has its own light.
Answer the following.
List four natural sources 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 |
A ray of light passes from one medium to another medium. Refraction takes place when angle of incidence is ______.
State Rayleigh’s law of scattering.
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?
