Question

A doctor has prescribed a corrective lens of power +2D.find the focal length of the lens ​

Answer 1

p= +2d

therefore, F= 1/P = 1 / +2 = 0.5cm

Answer 2

Answer:

$\huge \underbrace \mathfrak \red{answer}$

We can easily solve this mathematical problem by using the mathematical relationship between the power of the lens and the focal length of the lens. (Unit of the focal length should be written in metres.) Hence, the focal length of the given lens is 0.5 metre.

Explanation:

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