Unit of power is dioptre
1 dioptre = 1m-1If two thin lenses of focal length f1 and f2 are held in contact then the focal length of the combination will be
Power of a Optical Lens |
Unit of power is dioptre
1 dioptre = 1m-1If two thin lenses of focal length f1 and f2 are held in contact then the focal length of the combination will be

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