By exposure of electrons beams on atoms and observing their behaviour upon fall of beam can help to determine

By exposure of electrons beams on atoms and observing their behaviour

1.	By exposure of electrons beams on atoms and observing their behaviour upon fall of beam can help to determine
A.	charge
B.	weight
C.	length
D.	all
Answer» B. weight

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By exposure of electrons beams on atoms and observing their behaviour upon fall of beam can help to determine

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