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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.
Which of the following can conduct electricity owing to the presence of free mobile electrons?
Thermionic emission is the process whereby?
A piece of radioactive material contains 10\(^{20}\) atoms.
If the half life of the material is 20 seconds, the number of disintegration in the first second is?
If the decay constant of a radioactive substance is 0.231s-\(^1\), the half-life is?
Cancerous cells can be destroyed by?
If negative charges are induced on an electroscope and a positively charged rod is brought near the cap of the electroscope, the leaves will?
The ability of the human eye to focus object on the retina is referred to as the power of?
If the refractive index of crown glass is 1.51, its critical angle is?
An object is placed 5 cm from the pole of a concave mirror. if the focal length of the mirror is 10 cm. what is the image distance?
I. Moon.
II. Sun.
III.street light.
IV. stars.
Which of these are natural sources of light?
Musical instruments playing the same note can be distinguished from one another owing to the differences in their?
Metal cables are used as telephone wires because?
A man standing 2 m from a charcoal fire is warmed mainly by?
It is observed that water will wet a clean glass because the?
A heating coil rated 1000 W is used to boil off completely 2 kg of boiling water. The time required to boil the water is?
[Special latent heat of Vaporization of water = 2.3 x 10\(^6\) Jkg-1]