Question

For his work on which of the following did Albert Einstein receive a Nobel Prize?
A. Special Relativity
B. General relativity
C. Black Body radiation
D. Ether detection
E. Photoelectric effect

Answer 1

Albert Einstein also known as the father of Modern Physics, his contribution to science and physics is worth. His work includes relativity, time dilation, length contraction etc. He was born in Germany and was a Jew by religion, during the region of Hitler he escaped Germany and took citizenship in the United States of America.

Complete answer:
Special relativity and general relativity both are closely related. In general relativity the extension of the theory of gravitation is done by Einstein. He describes the relation between the geometry and 4D Riemannian manifold. The work was done by Albert Einstein but in later part of his life.He was awarded the Nobel prize in physics for his early work on the extension of Planck’s quantum hypothesis and later on successfully explaining the phenomenon of photoelectric effect. He was awarded the Nobel prize for this work.

Hence, the correct option is E.

Note: Photoelectric effect refers to the phenomenon of emission of electrons from the surface of the metal when a light of suitable frequency falls on it. The free electrons in the metals are present in the outermost shell but they are bound and on their own cannot move out. When a light of suitable frequency falls, the light consists of quanta of energy called photons, electrons absorb the photons and when the energy is above the work function then electrons are emitted.