Physics Gk Questions and Answers 2020-2021 - 1
Question: 1
Which one of the following is the purest form of semiconductor?
(A) intrinsic
(B) extrinsic
(C) both of these
(D) none of these
Ans: A
intrinsic
Question: 2
The best and the poorest conductors of heat are respectively?
(A) Silver (Ag) and lead (Pb)
(B) Copper (Cu) and aluminium (AI)
(C) Copper (Cu) and gold (Au)
(D) Silver (Ag) and gold (Au)
Ans: A
Silver (Ag) and lead (Pb)
Question: 3
Which zone of a candle flame is the hottest?
(A) Central zone
(B) Middle luminous zone
(C) Outermost zone
(D) Dark innermost zone
Ans: B
Middle luminous zone
Question: 4
The force between two charged bodies was studied by ____
(A) Faraday
(B) Gauss
(C) Benjamin Franklin
(D) Coulomb
Ans: D
Coulomb
Question: 5
Who is the recipient of Nobel Prize for the Development of Wireless Telegraphy?
(A) Kamerling Onnes
(B) J.J. Thomson
(C) Samuel Morse
(D) Marconi
Ans: D
Marconi
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