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प्रश्न
Fill in the blank
There are ........... and man-made ............ of light.
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उत्तर
There are natural and man-made sources of light.
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संबंधित प्रश्न
Match the following
| (a). A light ray passes from air to glass | (1) . speeds up |
| (b). A light ray passes from glass to water | (2). reflects red light |
| (c). Virtual image | (3). primary colours |
| (d). Red rose | (4). plane mirror |
| (e). Red, green, and blue | (5). slows down |
What do we call an electric bulb producing light?
What do we call a substance through which light passes? Give an example of such a substance.
Name any four man made sources of light.
Answer the following.
List two transparent objects.
A ______ is a natural source of light.
Mirrors change the direction of light that fall on them.
Light travels only in a______ It is because of this property that______ are formed.
The mirror used in search light is ______.
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?
