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How Much is this Energy in Mev? (Speed of Light = 3 × 108 M/S) - Science

 How much is this energy in MeV? (Speed of light = 3 × 108 m/s)

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Solution

The energy released in joules when 5 g (5/1000 kg ) of a material is completely converted into energy during a nuclear reaction is given by Einstein's equation as
` E=mc^2`
`=(5/1000)xx(3xx10^8)^2` 

`=4.5xx10^14j ` 
(e) The energy in MeV is given by:
`1/(1.6xx10^-13)xx4.5xx10^-13j` 

`(since 1meV=1.6xx10^-13j ) ` 

`=28xx10^27meV`

  Is there an error in this question or solution?
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APPEARS IN

Lakhmir Singh Class 10 Physics (Science)
Chapter 3 Sources of Energy
Q 27.5 | Page 158
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