Explain the principle and working of a nuclear reactor with the help of a labelled diagram.

Name a device which converts mechanical energy into electrical energy. Explain the underlying principle and working of this device with the help of a labelled diagram.

Explain the principle, construction and working of a cyclotron with the help of a labelled diagram. State its two limitations.

Explain meiosis with the help of labelled diagrams.

Explain the principle, construction and working of a nuclear reactor.

Explain the principle, construction and working of a Nuclear reactor.