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प्रश्न
How do we see objects around us ?
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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 luminous body is
What do we call a substance through which we cannot see light? Give an example of such a substance.
Write the names of some cold light-emitting objects.
Fill in the blank
The brightness of light is measured in ...................
A ______ is a natural 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 |
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State whether the following statement is True or False.
An object can be seen only if it emits light
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?
