Superconductivity was discovered by ______ , who was also awarded the Noble Prize for Physics in 1911.

Options

A. 1.Robert Bunsen
B. 2.Johannes Diderik van der Waals
C. 3.Heike Kamerlingh Onnes
D. 4.Gustav Kirchhoff

Answer

C

Explanation

Superconductivity was discovered by Heike Kamerlingh Onnes, who was also awarded the Nobel Prize for Physics in 1911. When he cooled the Mercury to the temperature of liquid helium, 4 degrees Kelvin, its resistance suddenly disappeared.