Question

what will be the equivalent power of the combination of two lenses of power+2.0D and +0.25 D respectively​

Answer 1

Answer:

+2.25

equivalent power = p1 + p2 + p3

Answer 2

Given - Power of two lenses : +2 D and +0.25 D

Find - Equivalent power of combination of two lenses.

Solution - Equivalent power of combination of two lenses is given by the formula - P1 + P2, where P1 is power of first lens and P2 is power of second lens.

So, keeping the values in formula -

P = 2 + 0.25

P = 2.25 D

Hence, equivalent power of combination of two lenses is 2.25 D.