πŸ“Š Physics
Q. In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is
  • (A) decreased by 2%
  • (B) decreased by 4%
  • (C) increased by 2%
  • (D) increased by 4%
βœ… Correct Answer: (B) decreased by 4%

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Yatendra Sir
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