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प्रश्न
Name a few living things which emit light.
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उत्तर
Jugnu and firefly.
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संबंधित प्रश्न
What is light? Define it.
What do we call a substance through which we cannot see light? Give an example of such a substance.
Name any four man made sources of light.
Fill in the blank
There are ........... and man-made ............ of light.
Write true or false
The moon has its own light.
Answer the following.
What is light?
When light passes through a prism, it gets separated into ______ colours.
_______ is the natural source that stimulates sight and makes things visible.
Why are traffic signals red in colour?
A student observes a tree given in the following figure through a pin hole camera. Which of the diagrams given in the following figure (a) to (d), depicts the image seen by her correctly?
