Question

What is the power of concave lens whose principal axis exist 15cm away from the optical center

Answer 1

Answer:

Power of the lens = 6.66 D

Explanation:

Power of the lens = 1/f

Given focal length = 15cm

Before substituting in the equation, convert cm to m,

Then f = 15/100 = 0.15m

P = 1/0.15 = 6.66 D

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