[" Two thin lenses when in contact produce a "],[" combination of power "+10D" .When they are "0.25m],[" apart,the power is reduced to "+6D" .The power of "],[" the lenses in diopters are "]

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

Two thin lenses,when in contact,produce a combinatin of power+10 dioptres.When they are 0.25 m apart,the power reduces to +6 dipotres.Find the power of the two lenses.

Two thin lenses, when in contact, produce a combination of power +10 diopters. When they are 0.25m apart, the power reduces to +6 diopters. The focal lengths of the lenses are m and "________________" m

Two thin lenses, when in contact, produce a combination of power +10 diopters. When they are 0.25m apart, the power reduces to +6 diopters. The focal lengths of the lenses are m and "________________" m

Two this lenses, when in contact, produce a combination of power +10 diopters. When they are 0.25 m apart, the power reduces to +6 diopters. The focal length of the lenses are…. m and … m .

Two thin lenses have a combined power of +9 D . When they are separated by a distance of 20 cm, their equivalent power becomes 27/5 D . Their individual powers (in diopters) are..............

Two thin lenses have a combined power of +9 D.When they are sparated by a distance of 20 cm. Their equivalent power becomes +(27)/(5)D .Their individual powers (in diopters)are