Physics (F.Sc)

Q: The error which have same effect on the measurements of a particular quantity is called?

(a) :  Systematic error
(b) :  Error due to uncertainties
(c) :  Random error
(d) :  All of these
(e) :  None
Answer:  Systematic error
Explanation:  

Q: Origin of magnetism is due to

(a) :  orbital motion of electron
(b) :  spin motion of electron
(c) :  both spin and orbital motion
(d) :  only circular motion
(e) :  None
Answer:  both spin and orbital motion
Explanation:  

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