A double convex lens of `+ 5 D` is made of glass of refractive index `1.5` with both faces of equal radii of curvature. Find the value of curvature.

Explanation

To solve the problem, we will use the lens maker's formula, which relates the focal length of a lens to its radii of curvature and the refractive index of the material from which it is made.

### Step-by-Step Solution:

1. **Understanding the Given Data:**
- The power of the lens (P) is given as +5 D (diopters).
- The refractive index (μ) of the glass is given as 1.5.
- The lens is a double convex lens, meaning both surfaces are convex and have equal radii of curvature.
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