If the density of a planet is half without any change in its radius, how does 'g' change on the planet.

Explanation

To determine how the gravitational acceleration 'g' changes on a planet when its density is halved without any change in its radius, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the formula for gravitational acceleration**: The gravitational acceleration 'g' at the surface of a planet is given by the formula:
\[ g = \frac{G \cdot M}{R^2} \]
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