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Physics General Knowledge Questions: Physics GK Question for Competitive Exams

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Q :  

Which of the following substances is magnetic?

(A) Nickel

(B) Aluminum

(C) Bismuth

(D) All of these

Correct Answer : A

Q :  

Which metal is generally used for making electromagnets?

(A) Copper

(B) Cobalt

(C) Iron

(D) None of these

Correct Answer : C

Q :  

In what form is heavy water used in a nuclear reactor?

(A) Coolant

(B) Controller

(C) Diluent

(D) Preservative

Correct Answer : C

Q :  

Which item is used in the fabrication of the transistor?

(A) Silicon

(B) Silver

(C) Aluminum

(D) Copper

Correct Answer : A

Q :  

X-rays cannot pass through what?

(A) skin

(B) bone

(C) meat

(D) wood

Correct Answer : B

Q :  

Image formed due to far-sightedness?

(A) posterior to the retina

(B) on the retina

(C) beyond the retina

(D) nowhere

Correct Answer : A

Q :  

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

Q :  

What is the minimum distance of clear vision?

(A) 25 cm

(B) 50 cm

(C) 100 cm

(D) Eternal

Correct Answer : A

Q :  

Who introduced the fourth dimension in physics?

(A) Newton

(B) Niels Bohr

(C) Einstein

(D) None of these

Correct Answer : C

Q :  

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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