Physics General Knowledge Questions: Physics GK Question for Competitive Exams
Which of the following substances is magnetic?
(A) Nickel
(B) Aluminum
(C) Bismuth
(D) All of these
Correct Answer : A
Which metal is generally used for making electromagnets?
(A) Copper
(B) Cobalt
(C) Iron
(D) None of these
Correct Answer : C
In what form is heavy water used in a nuclear reactor?
(A) Coolant
(B) Controller
(C) Diluent
(D) Preservative
Correct Answer : C
Which item is used in the fabrication of the transistor?
(A) Silicon
(B) Silver
(C) Aluminum
(D) Copper
Correct Answer : A
X-rays cannot pass through what?
(A) skin
(B) bone
(C) meat
(D) wood
Correct Answer : B
Image formed due to far-sightedness?
(A) posterior to the retina
(B) on the retina
(C) beyond the retina
(D) nowhere
Correct Answer : A
The capacity of a convex lens is diopter, its focus will be different?
(A) 24 cm
(B) 50 cm
(C) 40 cm
(D) 100 cm
Correct Answer : B
What is the minimum distance of clear vision?
(A) 25 cm
(B) 50 cm
(C) 100 cm
(D) Eternal
Correct Answer : A
Who introduced the fourth dimension in physics?
(A) Newton
(B) Niels Bohr
(C) Einstein
(D) None of these
Correct Answer : C
Who discovered the positron?
(A) Chadwick
(B) Anderson
(C) Newton
(D) Galileo
Correct Answer : B
Physics GK Questions - Basic Physics Questions and Answers
Q.Who was the first pre-Socratic philosopher to suggest that matter could neither be created nor destroyed?
[Answer]Show Answer
Ans . Parmenides
Q. In 1729 AD, Pieter Van Musschenbroek used the term ‘PHYSICS’ for the first time. What was the subject called so far?
Ans . Natural philosophy
Q. Which Greek philosopher suggested that the material world was composed of four basic elements – air, water, fire and earth?
Ans . Empedocles
Q. Who in 1231 was the first to describe the science of optics?
Ans . Robert Grosseteste
Q. Who was burnt to death for suggesting that the sun might be an ordinary star?
Ans . Giordano Bruno
Q. Who in 1643 was the first person to create vacuum above the liquid?
Ans . Evangelista Torricelli
Q. Who in 1786 invented the gold leaf electroscope?
Ans . Abraham Bennet
Q. Who encouraged Newton to write his idea for Principia?
Ans . Edmund Halley
Q. Who in 1808 discovered polarization of light and introduced the term ‘Polarization’?
Ans . Etienne-Louis Malus
Q. The first scientist to apply scientific reasoning to cosmology was Rene Descartes. What was his theory called?
Ans . Vortex Theory
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Rajesh Bhatia
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