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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 S.I unit for sound energy is
The critical angle for light traveling from a transparent medium to air s measured as 34º. The refractive index of the medium is
A boy receives the echo of his clap reflected by a nearby hill 0.8s later. If the speed of sound in air is 340ms\(^-1\), how far is he from the hill?
A solid weighs 45N and 15N respectively in air and water. Determine the relative density of the solid
A resistor connected to a 12V battery draws a current of 2A. The energy dispatched in the resistor in 5 minutes is ___.
When a known standard resistor of 2.0 is connected to the 0.0cm end of a metre bridge, the balance point is found to be at 55.0cm
The photo cell works on the principle of the
A lens of focal length 15cm forms an erect image which is three times the size of the object. The distance between the object and the image is ___.
The image of an object is located 6cm behind a convex mirror. If it's magnification is 0.6, calculate the focal length of the mirror
If the focal length of a camera is 20cm, the distance from the film at which the lens must be set to produce a sharp image of 100cm away is
Electrical power is transmitted at a high voltage rather than a low voltage because the amount of energy loss is due to
Which of the following instruments is most suitable for measuring the outside diameter of a narrow pipe in a few millimeters in diameter?
An object weighs 30N in air and 21N in water. The weight of the object when completely immersed in a liquid of relative density 1.4 is
The efficiency of energy conversion on the energy flow through a hydroelectric power is?
A ball of mass 5.0kg hits a smooth vertical wall normally with a speed of 2ms\(^{-1}\). Determine the magnitude of the resulting impulse
Palm oil from a bottle flows out more easily after it has been heated because the
Which of the following is the dimension of pressure
To keep a vehicle moving at a constant speed V requires power P from the engine. The force provided by the engine is
A particle of mass M initially at rest splits into two. If one of the particles of mass M1 moves with velocity V1 , the second particle moves with velocity
The friction which exist between two layers of liquid in relative motion is called.