Discoveries in Physics

41. Who discovered the concept of the uncertainty principle?
a) Werner Heisenberg
b) Isaac Newton
c) Galileo Galilei
d) James Clerk Maxwell

42. Who discovered the concept of the photoelectric effect?
a) Albert Einstein
b) Isaac Newton
c) Galileo Galilei
d) James Clerk Maxwell

43. Who discovered the concept of the strong nuclear force?
a) Hideki Yukawa
b) Isaac Newton
c) Galileo Galilei
d) James Clerk Maxwell

44. Who discovered the concept of the weak nuclear force?
a) Enrico Fermi
b) Isaac Newton
c) Galileo Galilei
d) James Clerk Maxwell

45. Who discovered the concept of the electromagnetic force?
a) James Clerk Maxwell
b) Isaac Newton
c) Galileo Galilei
d) Albert Einstein