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प्रश्न
What is light? Define it.
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उत्तर
Light is a form of Energy i. e. The external physical cause that affects our eye to produce the sensation of vision.
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संबंधित प्रश्न
Write true or false of the following statement.
The moon is self-luminous.
Fill in the blank.
Moon is a .................. body.
Tick the correct answer.
Substance which don’t allow light to pass through them,
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 |
When a ______ object comes in the way of light, light passes ______ it.
Choose the translucent substance from the following
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.
State Rayleigh’s law of scattering.
