Multiple choice

The most significant revolution in Physics in the twentieth century has been

  1. Bohr's Theory of Hydroaen atom.

  2. Nuclear Fusion.

  3. Planck's Quantum Theory and Einstein's Theory of Relativity.

  4. Quantum Mechanics.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The most significant revolution in physics in the twentieth century has been quantum mechanism developed by Albert Einstein.