Question : As per physicists and their major contributions/discoveries, which of the following pairs is incorrect?

Option 1: John Bardeen - Theory of superconductivity

Option 2: Louis Victor de Broglie - Wave nature of matter

Option 3: Victor Francis Hess - Cosmic radiation

Option 4: Paul Dirac - Liquid helium

Question : The British physicist named Paul Dirac was known to have introduced the concept of _________ in 1930.

Option 1: thermal ionisation

Option 2: cosmic radiation

Option 3: nuclear model of the atom

Option 4: antiparticle

Question : Who is the founder of quantum theory of radiation?

Option 1: Einstein

Option 2: Bohr

Option 3: Plank

Option 4: S. N. Bose

Question : Johann Gregor Mendel is famous for propounding

Option 1: Theory of mutation

Option 2: Laws of heredity

Option 3: Cell theory

Option 4: Theory of acquired characters

Question : Process of gaining electrons is known as -----------------.

Option 1: oxidation

Option 2: reduction

Option 3: radiation

Option 4: both oxidation and reduction