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प्रश्न
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 |
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उत्तर
| Column A | Column B |
| a. Wooden block | iii. opaque body |
| b. Sun | iv. luminous body |
| c. Umbra | v. complete dark park |
| d. Eclipse | ii. rectilinear propagation of light |
| e. Solar eclipse | i. new moon's day |
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