Two thin lenses of power 4.5D and -2.5 are placed in contact.find the power and focal length of the lens combination
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Answered by
2
Its power is 7
And focal length is 0.14
sanaya1101:
power is 2.5 not 7 your answer is wrong mate.
Sorry
2.5???
its 2 only
ha me 2sorry
its 2 only
Answered by
8
hey mate!!
Pnet = p1 + p2
Net power = 4.5 + (-2.5)
net power = 2.0
hope it will help u..
#Phoenix
Pnet = p1 + p2
Net power = 4.5 + (-2.5)
net power = 2.0
hope it will help u..
#Phoenix
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