Discoveries in Physics

16. Who discovered the theory of special relativity?
a) Albert Einstein
b) Isaac Newton
c) Galileo Galilei
d) James Clerk Maxwell

17. Who discovered the theory of general relativity?
a) Albert Einstein
b) Isaac Newton
c) Galileo Galilei
d) James Clerk Maxwell

18. Who discovered the theory of general relativity?
a) Albert Einstein
b) Isaac Newton
c) Galileo Galilei
d) James Clerk Maxwell

19. Who discovered the concept of black holes?
a) Albert Einstein
b) Stephen Hawking
c) Roger Penrose
d) John Michell

20. Who discovered the concept of string theory?
a) Edward Witten
b) Richard Feynman
c) Murray Gell-Mann
d) Steven Weinberg