Two thin lenses, when in contact, produce a combination of power `+10` dioptres. W
Channel: Doubtnut
Date: 2020-08-30

Two thin lenses, when in contact, produce a combination of power `+10` dioptres. When they are `0.25m` apart, the power is reduced to `+6` dioptres. The power of the lenses in dioptres, are