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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.
A mixture of blue and red pigment when illuminated by white light will appear
When water is boiling, it
The lead-acid accumulator consists of
A metal rod has a length of 100cm at 200°C. At what temperature will its length be 99.4cm. If the linear expansivity of the material of the rod is 2 × 10\(^{-5}\)C\(^{-1}\)
The momentum of a car moving at a constant speed in a circular track
A force of 6N acts horizontally on a stationary mass of 2kg for 4s. The kinetic energy gained by the mass is _________
The following are parts of the eye
I. Retina
II. Pupil
III. Iris
The correct equivalent in the camera in the same order are
The earth's gravitational field intensity at its surface is about
(G = 6.7 × 10\(^{-11}\)Nm\(^2\)/kg\(^2\), mass of the earth is 6 × 10\(^{24}\)kg, radius of the earth is 6.4 × 10\(^6\)m, g on the earth = 9.8m/s\(^2\))
Which of the following media allow the transmission of sound waves through them?
I. air
II. liquid
III. solids
The conductivity of gases at low pressure can be termed as
I. hot cathode emission
II. thermo ionic emission
III. cold cathode emission
IV. Field emission
In the molecular explanation of conduction, heat is transferred by the
The statement 'Heat lost by the hot body equals that gained by the cold one' is assumed when determining specific that heat capacity by the method of mixtures. Which of the following validates the assumption?
I. Lagging the Calorimeter
II. Ensuring that only S.I units are used
III. Weighing the calorimeter, the lid and the stirrer.
During the transformation of matter from the solid to the liquid state, the heat supplied does not produce a temperature increase because
The limiting frictional force between two surfaces depends on
I. the cohesive force of the material
II. the nature of the surfaces in contact
III. the relative velocity between the surfaces
An alternating current can induce voltage because it has
A thermocouple thermometer is connected to a millivoltmeter which can read up to 10mV. When one junction is in ice at 0°C and the other is steam at 100°C, the millivoltmeter reads 4mV. What is the maximum temperature which this arrangement can measure
A vibrator causes water ripples to travel across the surface of a tank. The wave travels 50cm in 2s and the distance between successive crests is 5cm. Calculate the frequency of the vibrator
A supply of 400V is connected across capacitors of 3μf and 6μf in series. Calculate the charge
The diagram above represents the stress-strain graph of a loaded wire. Which of these statements is correct?
Aluminium is sometimes used as the leaf of an electroscope because it