Physics Past Questions and Answers

In which of the following fields is radioisotopes not used?

A nuclide is represented by \(_{32}^{70}B\). Determine its neutron-proton ratio

(a) Define strain.<br/>(b) A rubber band is stretched to twice its original length. Calculate the strain on the rubber band.

State three materials used for making optical fibres.

Name three classes of magnetic materials.