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To explain his theory, Bohr used

Asked in CBSE AIPMT 1989 · Postulates, radius, speed and angular momentum

Answer: (2) conservation of angular momentum

Step-by-step solution

Idea: Bohr's stationary orbits are defined by a condition on angular momentum, not on energy.

The postulate is that an electron can occupy only those orbits for which mvr is an integer multiple of h/(2π).

In such an orbit the angular momentum is constant and the electron does not radiate.

So the conservation law the model is built on is that of angular momentum.

Why the other options are wrong

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