Questions

Q:

In a hydrogen atom, an electron moves in an orbit of radius 5.0 x 10-11 m with a speed of 2.2 x 106 m/s. What is the equivalent current? (Electronic charge = 1.6 x10-19 C)

 

 

A) 0.112 mA B) 112 mA
C) 11.2 mA D) 1.12 mA
 
Answer & Explanation Answer: D) 1.12 mA

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Q:

A body of mass 3 kg accelerates from 10 m/s to 20 m/s in 5 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

 

A) 6 B) 18
C) 12 D) 36
 
Answer & Explanation Answer: A) 6

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Q:

By which process the Chinese Scientists have cloned two identical long - tailed macaques?

A) Polymerase chain reaction B) Parthenogenesis
C) Somatic cell nuclear transfer D) Embryonic cell nuclear transfer
 
Answer & Explanation Answer: C) Somatic cell nuclear transfer

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Q:

Which one of the following bio reserves of India is not included in the World Network of Biosphere Reserve?

A) Sunderbans B) Gulf of Mannar
C) Nandadevi D) Corbett
 
Answer & Explanation Answer: D) Corbett

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Q:

___________ is obtained by evaporation of sea.

A) Sugar B) Iron
C) Salt D) Steel
 
Answer & Explanation Answer: C) Salt

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Q:

Cannis Familiaris is the scientific name of

A) Cat B) Dog
C) Fox D) Wolf
 
Answer & Explanation Answer: B) Dog

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Q:

Polio is a disease caused by which of the following?

A) Bacteria B) Mosquito
C) Virus D) Cockroach
 
Answer & Explanation Answer: C) Virus

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Q:

An _______________ is a sudden shaking or trembling of the earth.

A) thunderstorm B) cyclone
C) earthquake D) hurricane
 
Answer & Explanation Answer: C) earthquake

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