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Q. Explain the Law of Machines?
Answer:-
Machines which are utilized to lift a load are governed by the Law of machines which states that the effort to be applied on the machine (p) is related to the weight (w) which it can lift as - p = mw + c Where m and c are positive constants which are characteristics of the machine.
A ray of white light in air passes by a glass plate. Refraction takes place. The direction in which the light is travelling changes. For what colour of light is the alteration in d
Emission spectrum of hidrogen is different from emission spectrum of sodium.Why? Ans) Because, in sodium atom there are already many other electrons present in the atom aother than
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explain quantization of charge
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