BUK Physics 2008/2009 Past Questions

The force required to make an object of mass m, travelling with a velocity r, turn in a circle of radius r is

A cell of emf 2v and internal resistance 1Ω supplies current of 0.5 amps to a resistance whose value is

The speed of light in air is 3.0 × 10⁸ms^-1. Its speed in glass having a refractive index of 1.65 is

A man weighing 800N climbs up a flight of stairs to a height of 15m in 12.5s. What is the man's average power output?

A physical quantity that has the same dimensions as impulse is

The velocity ratio of a machine is 5 and its efficiency 75%. What effort would be needed to lift a load of 150N with the machin

Calculate the force acting on an electron of charge 1.6 × 10^-19C placed in an electric field of intensity 10⁶Vm^-1

The eye controls the amount of light reaching te retina by adjusting the

A brass rod is 2m long at a certain temperature. What is the length for a temperature rise of 100k, if the linear expansivity of brass is 1.8 × 10^-5K^-1

When the volume of a given mass of gas is halved and its temperature doubled, the pressure

₁₁²²Na + ₀¹X ⟶ ₉²⁰F + ₂⁴He. What particle is X in the above reaction?