Q30. An image of the sun is formed by a lens of focal length 30 cm on the metal surface of a photoelectric cell and it produces a current I. The lens forming the image is then replaced by another lens of the same diameter but of focal length 15 cm. The photoelectric current in this case will be: (In both cases the plate is kept at the focal plane and normal to the axis lens)Physics — Dawn of Modern Physics — Question 30 of 217A. I/2B. 2IC. ID. 4IPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →