Question

can a body have a change of 0.8×10-19? justify your answer

Answer 1

no acc. to the quantization of charges the value of charge will always be  more than 1.6  x  10-19

acc. to the formula q=ne ,where e is the charge carried by a proton or a electron and n are the integral multiples of the charge(n=1,2,3,4,5....)

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Answer 2

no because the min charge on the body can be 1.6*10^-19( charge on electron )
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