Singapore GCE A-Level H3 Physics Practice Questions - Singapore GCE A-Level H3 Physics Examination (SEAB Syllabus 9814) Exam

What is the rest energy E_0 of an electron (rest mass m_e = 9.11 x 10^-31 kg)?

0.511 MeV (8.20 x 10^-14 J) 1.022 MeV (1.64 x 10^-13 J) 13.6 eV (2.18 x 10^-18 J) 938.3 MeV (1.50 x 10^-10 J)

Correct Answer:

0.511 MeV (8.20 x 10^-14 J)

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