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प्रश्न
Answer the following.
Name some sources of light that are not hot.
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उत्तर
Moon, jugnu.
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संबंधित प्रश्न
Differentiate between the luminous and non-luminous bodies. Give two examples of each.
What is a transparent medium? Give two examples.
Name any four man made sources of light.
Name a few living things which emit light.
Tick the correct answer.
Light is a font of
Fill in the blank
Light consists of .............. colours.
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.
List two transparent objects.
a) Draw ray diagrams to show how the image is formed using a concave mirror, when the position of object is:
- at C
- between C and F
- between F and P of the mirror.
b) Mention the position and nature of image in each case.
Velocity of light is greater in denser medium than in rarer medium
