A doctor has prescribed lens of power `+ 1.5 D`. Find the focal length of the lens. Is the prescribed lens diverging or converging ?

Explanation

To solve the question regarding the lens prescribed by the doctor, we will follow these steps:

### Step 1: Understand the relationship between power and focal length
The power \( P \) of a lens is related to its focal length \( f \) by the formula:
\[ P = \frac{1}{f} \]
where \( P \) is in diopters (D) and \( f \) is in meters (m).
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