The induced current in a coil always flows in a direction so as to oppose the change that causes it. This statement is known as
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2019
In an elastic collision, momentum is conserved as well as well as?
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2019
Which of the following quantities is a vector?
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2019
The time rate of increase in velocity is called
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2019
The graph above illustrates the variation of temperature \(\theta\) with time (t) for a solid that is being heated. Which processes take place at segments P and Q respectively?
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2019
When ultraviolet light is incident on certain metallic particles are emitted. These particles are called
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2019
Which of the following properties is not exhibited by sound waves?
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2019
Which of the following statements about a neutral atom is correct? The
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2019
The area under a velocity-timegraph represents
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2019
An instrument used to measurerelative humidity is the?
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2019
The nucleon and proton numbers of a neutral atom of an element are238 and 92 respectively. Determine the number of neutrons in the atom.
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2019
Which of the following liquids has the highest surface tension?
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2019
Which of the following materials does not serve as asafety device in electrical circuits?
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2019
In the diagram above, the time taken to trace a wave between P and Q is?
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2019
Which of the following thermometers isused to measure the temperature of the human body?
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2019
The diagram above illustrates an object moving in a circular path at a constant speed. Which of the arrows indicates the direction of linear velocity?
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2019
Two bodies of masses 3.0 kg and 2.0 kg are separated by a distance of 50 cm. Calculate the force of attraction between them. [G = 6.67 x 10\(^{-11}\) Nm\(^2\)kg\(^2\)]
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2019
A rectangular piece of ironmeasuring 4 cm by 3 cm at 20\(^o\)C is heated until its temperature increases by 100 C. Calculate the new areaof the metal.[Linear expansivity of iron is 1.2x 10\(^{-5}\)K\(^{-1}\)]
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2019
A ray of light traveling from arectangular glassblock of refractive index 1.5 into air strikes the block at an angle of incidence of 30. Calculate its angle of refraction.
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2019
The anomalous expansion of water occurs in the range