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Which of the following is a semiconductor?
Which one of the following is used as a moderator in the nuclear reactor?
The ‘Black Box’ of an aeroplane is of
Pulitzer prize is awarded for outstanding work in the field of
Einstein was honoured with Nobel Prize for :
One micron represents a length of-
The Revolt of 1857 in Awadh and Lucknow was led by
Which one of the following is also called Stranger Gas?
Sickle-cell anemia is a disease caused due to the abnormality in
A hydrophyte is:
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