Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule?
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1986
A ball is thrown vertically into the air with an initial velocity u. What is the greatest height reached?
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1986
Which of the following is in a neutral equilibrium?
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1986
Two objects, one having three times the mass of the other, are dropped at the same time from a tall building. When they are above the ground, the two objects will have the same
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1986
Which of the following is a derived unit?
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1986
A heavy object is suspended from a string and lowered into water so that it is completely submerged. The object appears lighter because
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1986
The mode of heat transfer which does not require a material medium is
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1986
A 1000kg elevator is descending vertically with an acceleration of 1.0ms-2, if the acceleration due to gravity is 10ms-2, the tension in the suspending cable is
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1986
A rectangular tank contains water to a depth of 2m, if the base is 4m x 3m, calculate the force on the base (Density of water = 103kgm-3, g = 10ms-2)
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1986
A constant force of magnitude F acts on an object of mass 0.04kg initially at rest at a point O. if the speed of the object when it has moved 50m from O is 500ms-1, what is the value of F?
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1986
Which of the following assumptions is made in a simple pendulum experiment? the
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1986
Which of the following properties makes metals ideal for cooking utensils?
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1986
Mercury is suitable as a barometric fluid because it
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1986
Which of the following is common to evaporation and boiling? They
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1986
The specific latent heat of fusion of lead is the amount of heat required to
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1986
The expansion of solids can be considered a disadvantage in the
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1986
In which of the following arrangements is the wavelength in an increasing order?
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1986
A lens of focal length 12.0cm forms an upright image three times the size of a real object. The distance between the object and the images is
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1986
Which of the following is true of sounds?
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1986
When two objects P and Q are supplied with the same quantity of heat, the temperature change in P is observed to be twice that of Q. The ratio of the specific heat capacity of P to Q is