# Imagine that a reactor converts all given mass into energy and that it operates at a power level of 109 watt.  The mass of the fuel consumed per hour in the reactor will be :  (velocity of light, c is 3×108 m/s) Option 1)     0.96 gm Option 2)  0.8 gm Option 3)  4×10−2 gm Option 4)  6.6×10−5 gm

As we learnt in

energy mass equivalence -

- wherein

= mass defect

= energy released

Amount of energy produced in

1

This energy is produced by converting mass into energy so

Correct option is 3.

Option 1)

0.96 gm

This is an incorrect option.

Option 2)

0.8 gm

This is an incorrect option.

Option 3)

4×10−2 gm

This is the correct option.

Option 4)

6.6×10−5 gm

This is an incorrect option.

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