Which of the following factors does not affect the the electric resistance of a wire?
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2010
A positively charged glass rod is placed by near the cap of a positively charge electroscope. The divergence of the leaf is observed to
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2010
Which of the following statements about solid friction are correct? It i. is a force ii. occurs between the surfaces of two bodies in contact iii. depends on the area in contact
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2010
Which of the following statements is not true?
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2010
Which of the following instruments is best for measuring the diameter of a thin constantan wire?
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2010
Which of the following properties of a long steel bar would alter if the bar were melted, recast into a cube and allowed to cool to its original temperature?
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2010
Two cars X and Y travelling in opposite directions along the same high way at uniform velocities 110 kmh-1 and 90kmh-1 respectively pass each other at a certain point. The velocity of X relative to Y at the time they pas…
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2010
Which of the following statements about moving particle is correct?
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2010
Which of the following statements about static friction is correct? It
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2010
The types of motion which a cylindrical drum rolling down an inclined plane undergoes are
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2010
What is the density of a fuel of relative density 0.72? [Density of water = 1000kg m-3]
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2010
A vertical string, suspended from a fixed point and having a small mass attached to the free end is set into oscillations. Which of the following statements about the system are correct? i. The potential energy of the m…
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2010
simple harmonic oscillator has a period of 0.02s and amplitude of 0.25m. Calculate the speed in ms-1 at the centre of the oscillation
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2010
Which of the following statements best describes a rigid body? A body which
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2010
A body is projected horizonatlly from the top of a cliff 45m above the ground. if the body lands at a distance 30m from the foot of the cliff, calculate the speed of projection. [g = 10ms-2]
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2010
The average speed of an object is determined by dividing the sum of its initial and final speeds by two only when the acceleration is
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2010
The advantages of the thermoelectric thermometer include the following characteristics except that it
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2010
A thermometer records 680 mmHg at steam point and 440 mmHg at ice point. The temperature it records at 380 mmHg is
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2010
a machine is said to be a third class lever when the
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2010
A moving body of mass 25.0kg undergoes a uniform retardation of 20.0ms-2. Calculate the magnitude of the retardating force