What are cosmic rays?
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if appointed at aryabhatt school for how long should we expect you work with us
Name the indian states in which river ganga flows?
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Which synthetic fiber is known as artificial silk? 1 Cotton 2 Rayon 3 Terylene 4 Nylon
what are the advantages and disadvantages of rational knowledge?
Atoms of an element differ from those of all other elements in 1 Atomic number and electronic configuration 2 Atomic number and number of valence electrons 3 Number of neutrons and electronic configuration 4 None of these
What is super nova?
whate is the difference b/w aflatoxions&ocharatoxions
‘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
methane is not present in
Which of the following is used as a coolant in nuclear reactors? 1 Heavy water 2 Cadmium 3 Liquid sodium 4 None of these
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Which of the following is a good nuclear fuel? 1 Uranium-238 2 Neptunium-239 3 Thorium-236 4 Plutonium-239
what is defination of conductivity? How much conductivity of water ? what is effect when conductity of water low or high?