the focal length of the combination of two thin lens of power plus 5 Dee and minus to Dee which are in contact is
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The resultant power of the combination is
= +5 + (-2) = +3D
Now, length is = 1/P = 1/3m = 100/3cm = 33.33cm
Hope it helps..
= +5 + (-2) = +3D
Now, length is = 1/P = 1/3m = 100/3cm = 33.33cm
Hope it helps..
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