The diagram above represents a transverse travelling wave. Which two points are 180° out of phase?
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2018
To obtain a virtual, erect and magnified image from a thin converging lens, an object must be placed
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2018
A bar AB is balanced horizontally on two knife edges as illustrated as in the diagram above. Determine the weight of the bar.
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2018
A simple barometer is constructed using a liquid \(Q_{1}\) of density 16.2\(g/cm^{3}\). Calculate the least lenth of the tube to be used to measure pressure of 1.5atm. [Density of mercury = 13.6\(g/cm^{3}\), 1atm = 76.0…
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2018
Which electrical device is illustrated above?
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2018
When two flat plate conductors are arranged in such a way that they possess equal and opposite charges seperated by a dielectric, they form a/an
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2018
The pitch of a note is not affected by
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2018
Two plane mirrors are inclined to each other such that an object placed between them has 11 images. Determine the angle of inclination
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2018
The lens illustrated above can best be described as a
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2018
Rainbow formation is a natural phenomenon illustrating that white light
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2018
Which of the following electromagnetic waves is most energetic?
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2018
Frequency is measured in
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2018
The diagram above illustrates the mercury-in-glass thermometer used for determining the temperature of a room. Use the data on it to determine the room temperature.
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2018
The bob of a simple pendulum takes 8.0s to complete 10 oscillations. Determine the frequency of oscillation of the bob.
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2018
Which of the following factors does not increase the rate of evaporation of water in a lake?
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2018
The ice point on the absolute scale of temperature is
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2018
A football is kicked at an angle of 45° to the horizontal over a defense line up with a velocity of 15\(ms^{-1}\). Calculate the magnitudeof horizontal velocity of the ball at its highest point [Neglect friction, g = 10\…
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2018
The graph of density against temperature for water is correctly illustrated by
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2018
According to Newton's law of cooling, the heat energy lost per unit area of a body depends on theI. Surface areaII. Nature of the surfaceIII. Temperature of the surfaceIV. Excess temperature over the surroundings