Rest mass energy of an electron is 0.54 MeV. If velocity of the electr – McqOptions

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1.	Rest mass energy of an electron is 0.54 MeV. If velocity of the electron is 0.8 c, then K.E. of the electron is
A.	0.36 MeV
B.	0.41 MeV
C.	0.48 MeV
D.	1.32 MeV
Answer» B. 0.41 MeV

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