State Bohr's quantisation condition?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Concept**: Bohr's quantization condition is a fundamental principle in atomic physics that describes how electrons behave in an atom. It was proposed by Niels Bohr to address the limitations of Rutherford's model of the atom.

2. **Defining the Condition**: According to Bohr's quantization condition, electrons move in specific orbits around the nucleus of an atom. These orbits are not arbitrary; they are defined by a specific rule regarding the angular momentum of the electrons.

3. **Angular Momentum Specification**: The condition states that the angular momentum (L) of an electron in a stationary orbit is quantized. This means that the angular momentum can only take on certain discrete values.

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