In a nuclear fission, when a mass of 0 . 5 g of uranium is consumed, the energy obtained in kWh is n × 10 7 . Find the value of n .

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Question: Answered & Verified by Expert

In a nuclear fission, when a mass of

0.5 g

of uranium is consumed, the energy obtained in

kWh

is

n \times 10^{7}

. Find the value of

n

.

PhysicsNuclear PhysicsJEE Main

Solution:

2465 Upvotes Verified Answer

The correct answer is: 1.25

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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