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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
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 |
Fill in the blank.
A medium which allows light to pass through it easily is called the ...................
Is the moon a luminous object?
Write true or false
The stars have no light.
Answer the following.
Name some sources of light that are not hot.
When a ______ object comes in the way of light, light passes ______ it.
The path of the light is called as ______.
State whether the following statement is True or False.
An object can be seen only if it emits light
Boojho made light from a laser torch fall on a prism. Will he be able to observe a band of seven colours? Explain with a reason.
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?
