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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
Write true or false of the following statement.
We can see an object through an opaque medium.
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 |
Tick the correct answer.
Light causes
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.
What is meant by luminous intensity? What is one lumen?
________ objects allow all the light to pass through them.
When a beam of white light passes through a prism it gets ______.
The path of the light is called as ______.
Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively
