Which of the following forms of energy are involved in a nuclear power plant?

 In a nuclear power plant, several forms of energy are involved in the process of generating electricity. These forms include:

1. Nuclear energy: This is the primary form of energy harnessed in a nuclear power plant. The process of nuclear fission, where the nucleus of an atom (typically uranium-235 or plutonium) is split into smaller parts, releasing a significant amount of energy, is how nuclear energy is produced.

2. Thermal energy (heat): The energy released during nuclear fission is primarily in the form of heat. This heat is then used to raise the temperature of water to create steam.

3. Mechanical energy: The steam produced from the heated water is used to turn the blades of a turbine. As the turbine blades spin, they convert the thermal energy of the steam into mechanical energy.

4. Electrical energy: Finally, the mechanical energy of the spinning turbine is used to generate electricity. The turbine is connected to a generator, and the movement of the turbine is converted into electrical energy by the generator.

So, the process involves transforming nuclear energy into thermal energy, then mechanical energy, and finally into electrical energy, which can be distributed through the power grid.