2025
Charge carriers in doped semiconductors are
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2025 JAMB UTME Physics Past Questions
2025
Given that SQ = 10cm and SR = 6cm, the refractive index of the block of glass shown in the above figure is
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2025
In an A.C circuit, the instantaneous current is 7A. What is the root mean square(r.m.s) value of the current I\(_{r.m.s}\)
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2025
The density of water is 1g/cm\(^3\) while that of ice is 0.9g/cm\(^3\). Calculate the change in volume when 90g of ice is completely melted.
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2025
A 500W electric oven plugged into a 220 V source will consume an electric current of
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2025
The figure shows a uniform metre rule of weight 100 N balanced by a knife edge at the 10 cm mark and a cord attached at the 85 cm mark. What is the tension in the string?
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2025
The graphical representation of the pressure law is always a straight line passing through the origin, only if the temperature scale is
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2025
A concave mirror of focal length 20cm produces an erect image that is four times the object, the object distance from the mirror is
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2025
Standing waves are produced by
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2025
The volume of a 1 cm\(^3\) metal ball increases by 0.0018 cm\(^3\) when heated through temperature θ. If the linear expansivity of the ball is 2.0 x 10\(^{-5} K^{-1}\), find θ.
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2025
What is the mass of a particle with speed 2.7 x 10\(^8\)m/s and wavelength 4.0 x 10\(^{-7}\)mm? (h = 6.63 x 10\(^{-34}\)Js)
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2025
The device that operates using the magnetic effect of electric current is
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2025
A 5 \(\mu\) positively charged particle is moving at 45º to the direction of magnetic field with 3 x 10\(^4\)m/s speed. If it experiences a force of 6N, what is the value of the flux density of the field?
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2025
A 25cm long pinhole camera produces a one-fifth of an object's size. Calculate the object distance
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2025
The thermometric property of mercury is best on the change in
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2025
Which of the following thermometer types best responds to a change in temperature
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2025
The resultant of the force shown above is
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2025
The diagram above shows a magnetic field due to a
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2025
If the critical angle for a glass–air boundary is 45º, what is the refractive index of the glass?
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2025
Lining the walls of an auditorium with perforated materials reduces
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