Physics related questions and answers

DoThe Best
By DoThe Best February 1, 2016 12:23

Optic fibres are mainly used for which of the following ?  

A.  Communication
B.  Weaving
C.  Musical instruments
D.  Food industry

Answer : A.  Communication

Who invented Bakelite?  

A. Charles Goodyear
B. Leo Hendrik Baekeland
C. Roy Plunkett
D. Henry Ford

Answer : B. Leo Hendrik Baekeland

Rocket engine works on the principle of  

A.  Newtons third law
B.  Newtons first law
C.  Newtons second law
D.  None of these.

Answer : A.  Newtons third law

Cyrogenic engines find application in  

A.  Rocket technology
B.  Frost free refrigerators
C.  Sub-marine propulsion
D.  researches in superconductivity

Answer : A.  Rocket technology

The best and the poorest conductors of heat are respectively  

A.  Silver(AG) and lead(PB)
B.  Copper(CU)andaluminium(AL)
C.  Silver(AG)andgold(AU)
D.  Copper(CU)andgold(AU)

Answer : A.  Silver(AG) and lead(PB)

DoThe Best
By DoThe Best February 1, 2016 12:23
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