The separation between two masses is reduced to half. How is the magnitude of gravitational force between them affected ?

Explanation

To solve the problem of how the gravitational force between two masses is affected when the separation between them is reduced to half, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Gravitational Force Formula**:
The gravitational force \( F \) between two masses \( m_1 \) and \( m_2 \) separated by a distance \( r \) is given by Newton's law of gravitation:
\[
F = \frac{G m_1 m_2}{r^2}
...