KCET2022PhysicsNuclear Physics
A nuclear reactor delivers a power of 10^9 ~W , the amount of fuel consumed by the reactor in one hour is
Options
- A0.08 ~g
- B0.72 ~g
- C0.96 ~g
- D0.04 ~g
Correct answer
D. 0.04 ~g
Step-by-step solution
Given, power delivered by nuclear reactor, aligned & P=10^9 ~W & c=3 10^8 ~m / s & t=1 ~h =60 60 ~s aligned Since, P= E t = m c^2 t [ E=m c^2 ] aligned m & = P t c^2 = 10^9 60 60 (3 10^8 )^2 & = 10^9 3600 9 10¹⁶ =4 10⁻⁵ ~kg & =0.04 10⁻³ ~kg =0.04 ~g aligned