BUK Physics 2017/2018 Past Questions

A car moves with an initial velocity of 25ms^-1 and reaches a velocity of 45ms^-1 in 10s. What is the acceleration of the car?

Two cars moving in the same direction have speeds of 100Kmh^-1 and 130Kmh^-1. What is the velocity of the faster car as measured by an observer in the slower car

A machine of velocity ratio 6 requires an effort of 400N to raise a load of 800N through 1m. What is the efficiency of the machine

The wavelength of a wave travelling with a velocity of 420ms^-1 is 42m. What is its period?

An object 4cm high is placed 15cm from a concave mirror of focal length 5cm. The size of the image is

An object is embedded in a block of ice, 10cm below the plane surface. If the refractive index of the ice is 1.50, the apparent depth of the object below the surface is

A cell of emf 12V and internal resistance 4Ω is connected to an external resistor of resistance 2Ω. What is the amount of current flows?

The three 4Ω resistors connected in parallel have a potential difference of 16V applied across them. What is the total current in the circuit ?

In the diagram above, a 200W bulb is lighted by a 240V a.c mains supply. If kWh is sold at N40, the cost of keeping the bulb lighted for a day is

Two inductors of inductance 5mH and 15mH are connected in series and a current of 5A flows through them. The total energy stored in the inductors is