A hydrogen atom contains one proton and one electron. It may be assumed that the electron revolves in a circle of radius 0.53 angstrom `(1 angstrom = 10^(-10)` m and is abbreviated as A) with the proton at the centre. The hydrogen atom is said to be in the ground state in this case. Find the speed of the electron in the ground state of hddrogen atom.

Explanation

To find the speed of the electron in the ground state of a hydrogen atom, we can use the balance of electrostatic force and centripetal force acting on the electron. Here’s a step-by-step solution:

### Step 1: Identify the forces acting on the electron
The electron is subjected to two main forces:
1. **Electrostatic Force (F_e)**: This is the force due to the attraction between the proton (nucleus) and the electron.
2. **Centripetal Force (F_c)**: This is the force required to keep the electron moving in a circular path.

### Step 2: Write the expression for the electrostatic force
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