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प्रश्न
Fill in the blank
Light consists of .............. colours.
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उत्तर
Light consists of seven colours.
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संबंधित प्रश्न
Write true or false of the following statement.
We can see an object through an opaque medium.
Differentiate between the luminous and non-luminous bodies. Give two examples of each.
Name any four man made sources of light.
Fill in the blank
A ............. is formed when the path of light is obstructed by an ..............
Match the following
| Column A | Column B |
| 1. Transparent object | i. Football |
| 2. Eclipses | ii. Glass |
| 3. Translucent object | iii. Fluorescent tube |
| 4. Luminous object | iv. Tracing paper |
| 5. Non - luminous object | v. Shadows |
Answer the following.
Name some sources of light that are not hot.
When a ______ object comes in the way of light, light passes ______ it.
Speed of light in air is 3 × 108 m s–1 and the refractive index of a medium is 1.5. Find the speed of light in the medium.
The path of the light is called as ______.
If the energy of incident beam and the scattered beam is the same, then the scattering of light is called as ______ scattering.
