If in nuclear fission, a piece of uranium of mass 5 .0 g is lost, the energy obtained in kWh is

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Question: Answered & Verified by Expert

If in nuclear fission, a piece of uranium of mass

5 .0 g

is lost, the energy obtained in

kWh

is

PhysicsNuclear PhysicsNEET

Options:

A $1.25 \times 10^{7}$
B $2.25 \times 10^{7}$
C $3.25 \times 10^{7}$
D $0.25 \times 10^{7}$

Solution:

1623 Upvotes Verified Answer

The correct answer is:

1.25 \times 10^{7}

E = Δ m c^{2}

= 0.5 \times 10^{- 3} \times {(3 \times 10^{8})}^{2}

= 4.5 \times 10^{13}

E = \frac{4.5 \times 10^{13}}{3.6 \times 10^{6}}

= 1 .25 \times 10^{7} kWh

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