SCIENCE is an essential element for preparing any competitive examination. Here are some important questions relating to SCIENCE . It will help you in preparation for different competitive examinations .
1. Who propounded the theory of relativity?
Ans: Albert Einstein.
2. Who was the first person to see a cell under microscope?
Ans: Robert Hooke.
3.Which is the principal metal used in manufacturing steel?
Ans: Iron.
4.Who is known as the father of modern Biology?
Ans: Aristotle.
5. An alimeter is used for measuring.....
Ans: Altitude.
6. Who invented Microscope?
Ans:Aaton Van Leewen Hock.
7. Oology is the study of.....
Ans: Birds eggs.
8. What was Galileo 's first scientific discovery?
Ans: Pendulum.
9. Who discovered Radioactivity?
Ans: Henry Bacquerel.
10. Cresograph is used to measure the.....
Ans: Rate of growth of a plant.
11. Which metal used in storage batteries?
Ans: Lead.
12. Who invented Cresograph?
Ans: J.C. Bose.
13.The instrument used to measure the relative humidity of air is.....
Ans: Hygrometer.
14. Who propounded the law of gravitation?
Ans: Sir Issac Newton.
15. Who invented Barometer?
Ans: Torricelli.
16. Who invented the nuclear reactor?
Ans: Enrico Ferni.
17. What is the unit of power?
Ans: Watt.
18.Who invented Dynamo?
Ans: Michael Faraday.
19. Who invented Radium?
Ans: Marie and Pierrie Curie.
20. Who discovered the existence of isotopes?
Ans: Frederick Soddy.
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