2022
In which of the following situations is friction not useful?
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2022 WAEC SSCE Physics Past Questions
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2022
The basic principle of operation of a beam balance is------------------
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2022
Using venier calipers, which of the followingreadings gives the correct measurement for the length of a rod?
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2022
The viscosity of a fluid depends on the following factors except the?
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2022
Molecules move in random motion within a liquid. The total internal energy of the liquid depends on all of the following except its?
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2022
A small object of mass 50 g is released from a pointA. Determine the velocity of the object when it reaches a point B, a vertical distance of 30m below A. [g = 10 ms\(^{-2}\)
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2022
A quantity of water at 0 °C is heated to 30 °C. For each degree rise in temperature, its density will---------
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2022
The engine of a car provides a forward force of 1240 N and the total resistive force on the car is 800N. If the mass of the car is 1220 kg, determine the distance the car has to travel from the rest before acquiring a sp…
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2022
Which of the folowing statements about light travelling from one material medium toanother is not correct?
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2022
Which of the following concepts is a method of heat transfer that does not require amaterial medium?
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2022
The diameter of a brass ring at 30 °C is 50.0 cm. To what temperature must this ring be heated to increase its diameter to 50.29 cm? [ linear expansivity of brass = 1.9 x 10\(^{-5}\) K\(^{-1}\)]
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2022
Which of the following statements-about electromagnetic waves is not correct?
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2022
The distance between the fixed points of a mercury-in-glass thermometer is 30 cm. Determine the temperature when the mercury level is 10.5 cm above the lower fixed point
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2022
A hunter fires a gun at a point 408 m away from a cliff. If he hears an echo 2.4 s later, determine the speed of the sound wave
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2022
When the direction of vibration of the particles of a medium is perpendicular to the direction of propagation of a wave, the wave is said to be--------
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2022
The half-life of a radioactive substance is 15 hours. If at some instance, the sample has a mass of 512 g, calculate the time it will take \(\frac{7}{8}\) of the sample to decay
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2022
Gamma rays are produced when?
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2022
If the kinetic energy of an electron is 100 eV, what is the wavelength of the de-Broglie wave associated with it? [h = 6.6 x 10\(^{-34}\) J s, e = 1.6 x 10\(^{19}\)C, m\(_{e}\), = 9.1 x 10\(^{-31}\)kg]
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2022
Arrange the following radiations in order of increasing ionization of air.I. AlphaIl. GammaIIl. Beta
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2022
In doping an intrinsic semiconductor to produce a p-type semiconductor,
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