Two lenses one convex and one concave are of same mass and same radius. Which will have greater moment of inertia about its pole?

Explanation

To determine which lens has a greater moment of inertia about its pole, we need to analyze the distribution of mass in both the convex and concave lenses.

### Step-by-Step Solution:

1. **Understanding Moment of Inertia**:
The moment of inertia (I) of an object is defined as the sum of the products of the mass of each particle (m) and the square of its distance (r) from the axis of rotation. Mathematically, it can be expressed as:
\[
I = \sum m_i r_i^2
...