2024
(a) Mention three facts about photoelectric effect (b) An electric magnetic radiation source of power 6 x 10\(^{-3}\) W emits 1 x 10\(^{16}\) photons per second. The most energetic photo electron ejected from a metal sur…
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2024 WAEC SSCE Physics Past Questions
2024
(a)i State the condition for a charged particle to experience a force in magnetic field (ii) State the expression for the magnetic force, F acting on a charged particle, Q in a magnetic field of flux density, \(\beta\) w…
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2024
(a) State the condition for light ray incident on a concave mirror to reflect through the principal focus of the mirror. (b) Explain spherical aberration as a defect of curved mirrors (c) The diagram above illustrates…
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2024
(a)(i) What is a thermometric liquid? (ii) State the reason for the following design features of a clinical thermometer. I. Narrow bore: II. Thin wall of the bulb (b) Distinguish between heat and temperature of an objec…
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2024
PART2 (a) State the effect of increasing temperature on the viscosity of a: (i) liquid, (ii) gas (b) State two factors that determine the magnitude of a moment of a forc…
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2024
The fractional change in length produced in an elastic material of spring constant 680Nm\(^{-1}\) when a force of 306N is applied to stretch it is 1.5. Calculate the original length of the material.
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2024
An electron of mass, m, and charge, e moves through the electric field of potential difference V\(_o\) with a speed, v. Show that de Broglie wavelength associated with the electron is given as \(\lambda\) = \(\frac{\text…
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2024
State three uses of ferromagnetic materials
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2024
An object projected at an angle to a ground level has a time of flight 4 seconds to move through still air. Calculate the maximum height attained by the object.[g = 10ms\(^{-2}\)]
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2024
(a) State the S.I base unit of the following quantities: (i) a stress, (ii) force constant (iii) Plank's constant
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2024
(a) State two uses of a polar satellite. (b) What does the slope of a graph of tensile stress against tensile strain represent?
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2024
(a) Derive the dimension of surface tension. (b) Name the instrument used to measure the force of gravity at a place
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2024
The diagram above illustrates the graph for
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2024
The constant temperature at which a liquid change into gaseous state is known as
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2024
Water is readily available but it is not a thermometric liquid mainly because
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2024
The amount of heat energy that will be extracted when 0.02kg of water vapor condenses to water at 97ºC is [specific heat capacity of water = 4200Jkg\(^{-1}\)k\(^{-1}\), Specific heat of vaporization of water = 2.26 x 10\…
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2024
A convex mirror is used as a driving mirror; however, a disadvantage in this regard is that the image
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2024
Which of the following factors does not affect the speed of sound?
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2024
In storing magnets, the keeper is used to
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2024
A galvanometer of full-scale deflection 10 mA has a resistance of 5\(\Omega\). Calculate the shunt needed to convert it to measure currents of 2 A.
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