MCQOPTIONS
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| 1. |
In a cinema hall, the distance between the projector and the screen is increased by 2% Then the intensity of illumination of the screen is |
| A. | Decreased by 2% |
| B. | Decreased by 4% |
| C. | Increased by 2% |
| D. | Increased by 4% |
| Answer» C. Increased by 2% | |