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In the year 2008, which one of the following conducted a complex scientific experiment in which sub-atomic particles were accelerated to nearly the speed of light ?
(a)
European Space Agency
(b)
European Organization for Nuclear Research
(c)
International Atomic Energy Agency
(d)
National Aeronautics and Space administration
(B)
Which one of the following types of waves are used in a night vision apparatus ?
Radio waves
Microwaves
Infra-red waves
None of the above
(C)
In a dry cell (battery), which of the following are used as electrolytes ?
Ammonium chloride and Zinc chloride
Sodium chloride and Calcium chloride
Magnesium chloride and Zinc chloride
Ammonium chloride and Calcium chloride
(A)