Q: In a computer, the parity bit is added for the purpose of:

A: Coding

B: Error detection

C: Controlling

D: Indexing



Correct Option: B  [ Error detection ]

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Q: Magnetic effect of current gives rise to which force ?

A: mechanical

B: frictional

C: spring

D: gravitational



Correct Option: A  [ mechanical ]

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Q: J J Thomson received the Nobel Prize in Physics for the discovery of ________.

A: Protons

B: Electrons

C: Neutrons

D: Positrons



Correct Option: B  [ Electrons ]

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Q: Seismology is the science of :

A: Atmosphere

B: Earthquake

C: Fossil

D: Silkworm breeding



Correct Option: B  [ Earthquake ]

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Q: The sex of a newborn baby is determined by the chromosome inherited from :

A: the mother

B: mother's mother

C: the father

D: father's father



Correct Option: C  [ the father ]

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Q: Lack of Vitamin A may cause

A: Poor night vision

B: Rickets

C: Beri Beri

D: None of these



Correct Option: A  [ Poor night vision ]

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Q: Einstein received Nobel Prize for his theory of :

A: Relativity

B: Photoelectricity

C: Brownian Motion

D: None of these



Correct Option: B  [ Photoelectricity ]

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Q: Which of the following is an operating system ?

A: Floppy

B: Windows Xp

C: Oracle

D: ROM



Correct Option: B  [ Windows Xp ]

Remark:


Q: Generally, non-metals do not conduct electricity. Which of the following conducts electricity?

A: Diamond

B: Graphite

C: Sulfur

D: Fullerene



Correct Option: B  [ Graphite ]

Remark:


Q: The technique of 'DNA sequencing' was discovered by:

A: H. G. Khorana

B: Watson and Crick

C: Frederick Sanger

D: E. M. Southern



Correct Option: B  [ Watson and Crick ]

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