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The increase in mass of water when 1.0 k...

The increase in mass of water when 1.0 kg of water absorbs `34.2xx10^(3)J` of energy to produce a temperature riise of 1 K will be

A

`4.2xx10^(-13)kg`

B

`3.8xx10^(-13)kg`

C

`5.1xx10^(-14)kg`

D

`6.2xx10^(-13)kg`

Text Solution

Verified by Experts

The correct Answer is:
B
As `m=(E)/(c^(2))`
Given energy, `E=34.2xx10^(3)J`
`therefore m=(34.2xx10^(3))/((3.0xx10^(8))^(2))kg`
`=3.8xx10^(-13)kg`
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