Answers A particle is projected at an angle of 30° to the horizontal with a speed… A particle is projected at an angle of 30° to the horizontal with a speed of 250 ms(^{-1}).… Read More
Answers State; (a) the difference between plane polarized light and ordinary light; (b) two uses of… State; (a) the difference between plane polarized light and ordinary light; (b) two uses of polaroids. Explanation (a)… Read More
Answers What is a magnetic field? (b) With the aid of a labelled diagram describe… (a) What is a magnetic field? (b) With the aid of a labelled diagram describe an experiment to… Read More
Answers (i) State Einstein’s equation of photoelectric effect (ii) What conservation principle does the equation represent?… (a)(i) State Einstein’s equation of photoelectric effect (ii) What conservation principle does the equation represent? (b) List three… Read More
Answers State two differences between boiling and evaporation. (b) A closed inexpansibie vessel contains air… (a) State two differences between boiling and evaporation. (b) A closed inexpansibie vessel contains air saturated with water… Read More
Answers The equation y = (alpha) sin (wt – kx) represents a plane wave travelling… (a) The equation y = (alpha) sin (wt – kx) represents a plane wave travelling in a medium… Read More
Answers State Heisenberg’s Uncertainty Principle. (b) State one phenomenon that can only be explained in… (a) State Heisenberg’s Uncertainty Principle. (b) State one phenomenon that can only be explained in terms of the… Read More
Answers A particle moves on a straight path with an initial speed u and final… (a) A particle moves on a straight path with an initial speed u and final speed v in… Read More
Answers An electron of charge 1.60 x 10(^{-19})C is accelerated under a potential difference of 1.0… An electron of charge 1.60 x 10(^{-19})C is accelerated under a potential difference of 1.0 x 10(^{5}) V.… Read More
Answers a) On what principle does lighting in a fluorescent tube operate? (b) State two factors… a) On what principle does lighting in a fluorescent tube operate? (b) State two factors which determine the… Read More