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Question

1 MeV is equal to __________ .


A

1.6×10-19 J

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B

1.6×10-14 J

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C

1.6×10-13 J

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D

1.6 × 1013 J

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Solution

The correct option is C

1.6×10-13 J


Conversion of 1 MeV into joules

  1. 1 electron volt is defined as the energy gained by an electron when it gets accelerated through a potential difference of 1 volt.
  2. It also can be defined as the amount of work done required to move an electron on a potential difference of 1 volt.
  3. 1eV=1.6×10-19J1mega=1m=1061meV=1.6×10-19J×106=1.6×10-13J

Hence, option (c) is correct.


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