Ozone attacks
1 Mercury and silver
2 Copper
3 Silver and iron
4 None of these
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What is super nova?
Optic fibers are mainly used for which of the following? 1 Communication 2 Weaving 3 Musical instruments 4 Eye surgery
Which is the regulatory authority of atomic energy in india?
Which of the following is the basis of modern periodic table? 1 Atomic mass 2 Atomic number 3 Atomic size 4 Atomic volume
What are comets?
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Epoxy resins are used as 1 Moth repellants 2 Insecticides 3 Detergents 4 Adhesives
A moderator is used in nuclear reactors in order to 1 Increase the number of neutrons 2 Decrease the number of neutrons 3 Slow down the speed of neutrons 4 Accelerate the neutrons
Which country has no sunrise?
What is the Ecology ?
Who is the chairman od atomic energy commission of india?
‘No two electrons in an atom can have the same set of four quantum numbers’ is 1 Bohr’s law 2 Aufbau principle 3 Newton’s law 4 Pauli’s exclusion principle