General Science Questions and Answers for TNPSC - 1
Question: 1
Which of the following theories explains photoelectric effect?
(A) Quantum theory
(B) Electromagnetic theory
(C) Wave theory
(D) Corpuscular theory
Ans: A
Quantum theory
Question: 2
Who discovered photoelectric effect?
(A) Hallwachs
(B) Heinrich Hertz
(C) Elster
(D) Geitel
Ans: B
Heinrich Hertz
Question: 3
Who applied quantum theory of radiation to photoelectric effect?
(A) Albert Einstein
(B) Maxwell
(C) Millikan
(D) Max Planck
Ans: A
Albert Einstein
Question: 4
Energy of the incident photon =
(A) Work function + Kinetic energy of the electron
(B) Work function + Kinetic energy of the proton
(C) Potential energy + Kinetic energy of the proton
(D) Potential energy + Kinetic energy of the electron
Ans: A
Work function + Kinetic energy of the electron
Question: 5
Who propounded the special theory of relativity?
(A) Max Planck
(B) Einstein
(C) Morley
(D) Michelson
Ans: B
Einstein
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