Physics, asked by ramya16, 1 year ago

a convex lens of focal length 25cm and a concave lens of focal length 10 cm are placed in close contact with each other. calculate the lens power of this combination

Answers

Answered by navi09

Lens power the combination is minus 6. Power = 1/f (f in meters) or P=100/f (f in cms). Power convex = +4 and Power of concace lens = -10. Adding the two powers gives the power of combined lens

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