Physics Past Questions and Answers

The nucleon number of an atom is the total number of

<table class='tbn'><tbody><tr><td> n = \(\alpha\) </td><td> 0.06eV </td></tr><tr><td> E=3 </td><td> -1.6eV </td></tr><tr><td> E=2 </td><td> -3.7eV </td></tr><tr><td> E=1 </td><td> -5.5eV </td></tr><tr><td> E=0 </td><td> -10.4eV </td></tr></tbody></table><br/><br/><br/>The energy levels in the mercury atom is illustrated in the table above. Calculate the ionisation energy of the atom.

Which of the following statements about Gamma radiation is correct? Gamma radiation can

<table class='tbn'><tbody><tr><td> Radio wave </td><td> Micro wave </td><td> Infrared wave </td><td> P </td><td> Q </td><td> R </td><td> Gamma Ray </td></tr></tbody></table><br/><br/><br/>The table above shows the components of electromagnetic spectrum in order of increaasing frequency.Which of the following sets correctly identifies P, Q, R respectively?

A particle is dropped from a vertical height h and falls freely for a time t. With the aid of a sketch, explain how h varies with \(t^2\)