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प्रश्न
Tick the correct answer.
Substance which don’t allow light to pass through them,
विकल्प
Transparent substance
Opaque substance
Translucent substances
Non-luminous substance
उत्तर
Opaque substance
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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 |
Write true or false of the following statement.
The moon is a natural source of light.
Select the correct alternative.
The natural source of light is
What do we call a substance through which we cannot see light? Give an example of such a substance.
Fill in the blank
There are ........... and man-made ............ of light.
Fill in the blank
Speed of light in vacuum is .................
Answer the following.
Distinguish between transparent, translucent, and opaque objects.
Answer the following.
Name some sources of light that are not hot.
Describe the pictures.
Light is a form of energy and it travels in a straight line.
