Physics Past Questions and Answers

Nuclear fission is preferred to nuclear fusion in the generation of energy because

Which of the following reactions represents nuclear fusion?

The diagram above shows the resultant electric field pattern due to two electric point charges P and S. Which of the following statements is correct?

The bar magnet illustrated in the diagram above picks up an unmagnetised steel nail X. In turn, X picks up a similar nail Y and so on. The nail are said to be magnetised by

(a) State two objects each used in sports and warfare which may be considered as projectiles.
(b) the horizontal range R, of a projectile is given by the expression;
R = \(\frac{u^2 sin 2\theta}{g}\) where \(\theta\) is the angle of projection, g the acceleration of free fall due to gravity and u the initial velocity. At what value of \(\theta\) will R be maximium?