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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