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प्रश्न
What do we call a substance through which we cannot see light? Give an example of such a substance.
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उत्तर
A substance through which we cannot see light is called an opaque medium.
Examples: Wood, metals, and black paper, etc.
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संबंधित प्रश्न
Match the following columns
| Column A | Column B |
| a. Wooden block | i. new moon's day |
| b. Sun | ii. rectilinear propagation of light |
| c. Umbra | iii. opaque body |
| d. Eclipse | iv. luminous body |
| e. Solar eclipse | v. complete dark park |
Name two natural sources of light.
Tick the correct answer.
A tube light is a
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.
What is light?
Answer the following.
Differentiate between luminous and non-Luminous objects.
________ objects allow all the light to pass through them.
Light is a form of ______.
If the energy of incident beam and the scattered beam is the same, then the scattering of light is called as ______ scattering.
