Consider an infinite plane sheet of mass with surface mass density σ. The gravitational field intensity at a point P at perpendicular distance r from such a sheet is

A. Zero
B. `-σG`
C. `2piσG`
D. `- 4piσG`

Options

A. Zero
B. `-σG`
C. `2piσG`
D. `- 4piσG`

Explanation

To solve the problem of finding the gravitational field intensity at a point P at a perpendicular distance r from an infinite plane sheet with surface mass density σ, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Setup**:
- We have an infinite plane sheet with surface mass density σ.
- We need to find the gravitational field intensity at a point P located at a perpendicular distance r from the sheet.

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