A metal spherical shell has an inner radius `R_(1)` and outer radius `R_(2)`. A charge Q is placed at the center of the spherical cavity. What will be surface charge density on (i) the inner surface, and (ii) the outer surface ?

Explanation

To solve the problem, we need to determine the surface charge density on the inner and outer surfaces of a metal spherical shell when a charge \( Q \) is placed at the center of the spherical cavity.

### Step-by-Step Solution:

1. **Understanding the Setup**:
- We have a metal spherical shell with an inner radius \( R_1 \) and an outer radius \( R_2 \).
- A charge \( Q \) is placed at the center of the spherical cavity.

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