Write any two postulates of Bohr's model for hydrogen atom.

Explanation

**Step-by-Step Solution:**

1. **Identify the Model**: The question asks for the postulates of Bohr's model specifically for the hydrogen atom. Bohr's model was proposed by Niels Bohr in 1913 to explain the behavior of electrons in atoms.

2. **First Postulate**: The first postulate states that the electron in a hydrogen atom travels in circular orbits around the nucleus. This means that the electron does not radiate energy while in these stable orbits.

- **Explanation**: This postulate implies that the electron's motion is quantized, and it can only occupy certain allowed orbits without losing energy.

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