Advertisements
Advertisements
प्रश्न
Name two natural sources of light.
Advertisements
उत्तर
- Sun
- Stars
- Firefly
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
A medium which allows light to pass through it easily is called the ...................
Fill in the blank.
Light travels in a ................. path.
What do we call a substance through which we cannot see light? Give an example of such a substance.
Tick the correct answer.
Light is a font of
Fill in the blank
Speed of light in vacuum is .................
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 four natural sources of light.
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.
Boojho made light from a laser torch fall on a prism. Will he be able to observe a band of seven colours? Explain with a reason.
Light is a form of energy and it travels in a straight line.
