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प्रश्न
Name a few living things which emit light.
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 |
Differentiate between the luminous and non-luminous bodies. Give two examples of each.
Write the names of some transparent objects.
Tick the correct answer.
Substance which don’t allow light to pass through them,
Write true or false
The moon has its own light.
Choose the translucent substance from the following
A ray of light passes from one medium to another medium. Refraction takes place when angle of incidence is ______.
The mirror used in search light is ______.
What happens to light when it gets dispersed? Give an example.
Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively
