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प्रश्न
Fill in the blank
A ............. is formed when the path of light is obstructed by an ..............
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उत्तर
A shadow is formed when the path of light is obstructed by an object
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संबंधित प्रश्न
How do we see objects around us ?
Write true or false of the following statement.
Light travels in a straight-line path.
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?
Can a transparent medium form an image? Explain your answer.
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
Fill in the blank
Speed of light in vacuum is .................
Sunlight is a blend of______ colors
A ray of light passes from one medium to another medium. Refraction takes place when angle of incidence is ______.
When a beam of white light passes through a prism it gets ______.
