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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.
Electrons passing through crystals are diffracted because they
A nitrogen nucleus bombarded with an alpha particle produces an oxygen nucleus and a proton. The nuclear reaction for this process is \(^4_2H + ^{14}_2N \to ^{17}_{8}O + ^1_1H + Q\). Which of the following statements about the reaction is not correct?
Production of x-ray tube begins with
Calculate the reactance of the inductor in the circuit diagram shown above [\(\pi = \frac{22}{7}\)]
In the circuit diagram above. Calculate the energy stored in the inductor at resonance
The material used for constructing the core of an electromagnet is
Which of the following statements about magnetic lines of force is not correct?
The Earth's magnetic equator passes through Jos in Nigeria. At Jos. the
An electric bulb is rated 60W, 220V. Calculate the resistance of its filament when it is operating normally
As the plates of a charged variable capacitor are moved closer together, the potential difference between them
The diagram above shows the wire of a sonometer box set into resonance by a vibrating tuning fork of frequency f, when the wire is stretched by a tension T, the resonating length of the wire is I while the wavelength of the sound produced is \(\lambda\). Which of the following statements about the frequency of vibration of the wire is not correct?
The diagram above shows the wire of a sonometer box set into resonance by a vibrating tuning fork of frequency f, when the wire is stretched by a tension T, the resonating length of the wire is I while the wavelength of the sound produced is \(\lambda\). Which of the following statements is not correct? The wave produced on the wire is
Which of the following statements about sound is correct?
Dispersion of white light by a glass prism occurs because
A piece of cloth appears green in sunlight. When held in red light, it will appear