Maadha Dheena posted an Question
June 25, 2020 • 19:22 pm 30 points
  • IIT JAM
  • Physics (PH)

How focal length become 2f?any one explain me please.

(a) When a lens of focal length f is cut into two equal halves perpendicular to principal axis, then each part of the lens has a focal length 2f. (v)

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