In the Sun,the important source of energy is

Control rods used in nuclear reactors are made of:

The nuclear reaction $^2H + ^2H \to ^4He$ (mass of deuteron $= 2.0141 \,amu$ and mass of $He = 4.0024 \,amu$) is

In nuclear fission,the percentage of mass converted into energy is about: (in $\%$)

An atomic power nuclear reactor can deliver $300 \, MW$. The energy released due to fission of each nucleus of uranium atom $U^{238}$ is $170 \, MeV$. The number of uranium atoms fissioned per hour will be (approximately):

The main source of solar energy is