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Light is able to travel through vacuum
Ans:
In classical physics electromagnetic radiation (light) is the only kind of wave that doesn't need a medium. For sound rays in air the air is the medium. It is the air that is waving. In the condition of light it is the electric and magnetic fields that do the waving and they are the light itself.
Number of electrons in the outermost orbit of the element of atomic number 15 is: (1) 1 (2) 3 (3) 5 (4) 7 Ans: 5
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sir please tell me about it
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Select one membrane industrial separation application for (i) reverse osmosis (RO), (ii) ultrafiltration (UF) and (iii) microfiltration (MF) (at least one of the three (in total
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