How many MeV are equivalent to 1 atomic mass unit (u)?

State one use of nuclear fission reactions.

Name the unit which is commonly used for expressing the energy released in nuclear reactions.

Fill in the following blanks with suitable words:

(a) Splitting of a heavy nucleus into two lighter nuclei is called .............

(b) Uranium-235 atoms will split when hit by ............ This is called ....................

(c) Nuclear ................ is used in nuclear power stations for the production of electricity.

(d) In a nuclear power station, nuclear fission takes place in the .............

What is nuclear fission? Explain with an example. Write the equation of the nuclear reaction involved.