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प्रश्न
Write the names of some transparent objects.
उत्तर
Glass, water, air, etc.
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संबंधित प्रश्न
How do we see objects around us ?
Can light travel in vacuum ?
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 |
What do we call an electric bulb producing light?
Why do objects in a room become visible even if sunlight does not enter it?
Tick the correct answer.
A tube light is a
Answer the following.
Write down five man-made sources of light.
State whether true or false. If false, correct the statement.
If a ray of light passes obliquely from one medium to another, it does not suffer any deviation.
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.
Look at the figure given in Fig. 11.8
Will there be any difference in the shadow formed on the screen in A and B.
