A stone of mass 0.5kg is dropped from a height of 12m. Calculate its maximum kinetic energy. [g = 10ms-1]
See more
2009
Which of the following factors affect the rate of evaporation of a liquid? i. Exposed surface area ii Temperature of the surroundings iii. Thermal capacity of the liquid iv. Relative humidity of the surroundings
See more
2009
Which of the following is used to measure relative humidity?
See more
2009
When table salt is added to ice, the melting point of the ice
See more
2009
A concave mirror forms a magnified and errect image only when the object is placed
See more
2009
The angle of incidence of a ray of light on a plane mirror is 55o. Determine the angle between the reflected ray and the mirror
See more
2009
Light travelling through a small pinhole usually does not make a shadow with a distinct sharp edge because of
See more
2009
Which of the following waves is not transverse
See more
2009
A boat is rocked by waves of speed 30ms-1 whose successive crest are 10m apart. Calculate the rate at which the boat recieves the waves
See more
2009
A satellite in circular motion around the earth does not have
See more
2009
Sound interference is necessary to produce the phenomenon of
See more
2009
Which of the following is not a part of the electro-magnetic spectrum?
See more
2009
Which of the following characteristics of light determines its colour?
See more
2009
A thin lens is placed 50cm from an illustrated object. The image produced has linear magnification of \(\frac{1}{4}\). Calculate the power of the lens in dioptres
See more
2009
A resistor of resistance R is connected to a battery of negligible internal resistance. If a siilar resistor is connected in series with it the
See more
2009
An isolated metal sphere of radius R, carrying an electric charge Q, is situated in the medium of relative permitivity, Er. A test charge is placed at a point p, distance r from the surface of the sphere. Let Eo represen…
See more
2009
An isolated metal sphere of radius R, carrying an electric charge Q, is situated in the medium of relative permitivity, Er. A test charge is placed at a point p, distance r from the surface of the sphere. Let Eo represen…
See more
2009
When a conductor mounted on an insulating stand is charged and left for sometime, the conductor eventually loses all its charges. This is because the
See more
2009
An ammeter connected to an a.c circuit records 5.5. The peak current in the circuit is
See more
2009
An inductor of inductance 1.0H is connected in series with a capacitor of capacitance 2.0\(\mu F\) in an a.c. circuit. to resonate