Question

Werner Heisenberg is known for his work on:
A) Inelastic scattering of light by molecules.
B) Quantum mechanics: Uncertainty principle.
C) Theory of superconductivity.
D) Expanding universe.

Answer 1

Hint: The Werner Heisenberg is a theoretical physicist and a key pioneer of quantum mechanics. Werner Heisenberg is known for his work on Quantum mechanics and made great contributions in the same field.

Complete step by step solution:
It is asked in the problem about the work of Werner Heisenberg we need to select the correct answer from the given options. Werner Heisenberg was a theoretical physicist and had great contribution in the field of Quantum mechanics also known for his work on Uncertainty principle. The principle of uncertainty was actually an inequality which says that the position and momentum both cannot be determined for a microscopic particle. The principle of uncertainty is only for microscopic particles and not for macroscopic particles.
The formula of the Heisenberg’s uncertainty principle is given by,
$ \Rightarrow \Delta x \times \Delta p \geqslant \dfrac{h}{{4\pi }}$
Where $\Delta x$ is uncertainty in position, $\Delta p$ uncertainty in momentum and h is Planck’s constant.
According to Heisenberg if we determine the position of a microscopic particle precisely then we cannot determine the momentum of the particle with same precision there will certainly always be uncertainty also if the momentum of a microscopic particle is determined then the position of the particle cannot be determined precisely this is Heisenberg’s uncertainty principle. Werner Heisenberg is known for his work on the Uncertainty principle in quantum mechanics.

The correct answer for this problem is option B.

Note: The main working of the Heisenberg was the uncertainty principle. It is advisable for the students to understand and also remember the formula of the Uncertainty principle as it is very helpful in solving the problem like these and many more.