Question

"It is impossible to measure simultaneously the exact position and exact momentum of a body as small as electron" This is the statement of:
1. Werner Heisenberg
2. Hund
3. Rutherford
4. Sommerfeld

Answer 1

Correct Answer - Option 1 : Werner Heisenberg

Werner Heisenberg is the correct option:

Concept:

Heisenberg’s Uncertainty Principle:

• W Heisenberg a German physicist is known for his famous uncertainty principle.
• This principle states that it is impossible to determine simultaneously, the exact position and exact momentum (or velocity) of an electron.

According to Heisenberg’s Uncertainty Principle

\({\rm{\Delta }}x \times {\rm{\Delta }}P\; \ge \frac{h}{{4\;\pi \;}}\)

Δ x is uncertainty in position, Δ p is uncertainty in momentum, h is Planck's constant.

• Hund laid down rules for electronic configuration.
• Rutherford is known for the discovery of the nucleus of an atom.
• Sommerfeld proposed that the orbitals of the electrons are eclipse in shape.