AN air filled parallel plate capacitor has a capacitance of 2.1 pF. The separation of the plates is doubled, and wax is inserted between them . The new capacitance is `2.6 p F` Find the dielectric constant of the wax.

Explanation

To solve the problem step by step, we will use the formula for the capacitance of a parallel plate capacitor and the effect of inserting a dielectric material.

### Step-by-Step Solution:

1. **Understanding the Initial Conditions:**
The capacitance \( C_1 \) of the air-filled capacitor is given as:
\[
C_1 = 2.1 \, \text{pF}
...