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प्रश्न
Answer the following.
List four natural sources of light.
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उत्तर
Sun, stars, jugnu, firefly.
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संबंधित प्रश्न
Write true or false of the following statement.
We can see an object through an opaque medium.
Fill in the blank.
The sun is a ............... source of light.
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 |
List two artificial sources of light.
Differentiate between the luminous and non-luminous bodies. Give two examples of each.
From among the following objects, list out the opaque, translucent, and transparent bodies in the space provided below:
A glass strip, an ordinary paper, greased paper, tracing paper, polythene sheet, wooden piece, steel plate, glycerine, kerosene oil, mustard oil, grounded glass, stone, book, water, and milk.
Opaque Transparent Translucent
Answer the following.
Distinguish between transparent, translucent, and opaque objects.
If the energy of incident beam and the scattered beam is the same, then the scattering of light is called as ______ scattering.
Velocity of light is greater in denser medium than in rarer medium
Using a pinhole camera a student observes the image of two of his friends, standing in sunlight, wearing yellow and red shirt respectively. What will be the colours of the shirts in the image?
