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Create and set up a CBT environment with your preferred subjects.
Practice JAMB CBT with real UTME past questions in CBT format.
CB-WASSCE styled past question practice.
SSCE & GCE styled past question practice.
The angular dispersion of a prism depends on
The mass of water vapour in a given volume of air is 0.05g at 20°C, while the mass of water vapour required to saturate it at the same temperature is 0.15g. Calculate the relative humidity of the air.
A safety precaution designed to prolong the life of a lead acid accumulator is
A copper rod, 5m long, when heated through 10ºC, expands by 1mm. If a second copper rod, 2.5m long, is heated through 5ºC, by how much will it expand?
Workdone on an object to bring it to a certain point in space is called
The length of the seconds hand of laboratory clock is 0.1m. Calculate the speed at the top of the seconds hand
A projectile of mass 4kg is fired vertically and reaches a maximum height of 40m. Calculate the potential energy at the highest point
(g = 10ms\(^{-2}\)
The part of the human eye that does similar work as the diaphragm of a camera lens is the
Heat may be transferred by conduction, convection and radiation. By which of these methods does heat travel through vacuum?
If the attraction of the sun is suddenly ceased, the earth would continue to move in a straight line making a tangent with the original orbit. This statement is derived from Newton's
Which of the following characteristics of a wave is used in the measurement of the depth of the Sea?
Which of these is observed when air is pumped out of a discharge tube without lowering its pressure
The volume of 0.354g of helium at 273°C and 114cmhg of mercury pressure is 2667cm\(^3\). Calculate the volume at STP.
When two objects A and B are supplied with the same quantity of heat, the temperature change in A is obtained to be twice that of B. The mass of A is half that of B. The ratio of the specific heat capacity of A to B is
The following are some units
I. Ns
II. Non
III. Nm\(^{-2}\)
IV. J°K\(^{-1}\)
V. JKg\(^{-1}\)
What are the units of latent heat?
A boy pushes a 500kg box along a floor with a force of 2000N. If the velocity of the box is uniform, the co-efficient of friction between the box and the floor is
A coil X is moved quickly away from the end Y of a stationary metal bar and a current then flows in X as shown above.
Then
The lower fixed part of a faulty thermometer reads 2°C while the upper fixed point is 100°C.
What is the true temperature when the thermometer reads 51°C?
The resultant capacitance in the figure above is
The point at which the molecules of a loaded wire begin to slide across each other resulting in a rapid increase in extension is