I. The motion of the tyres of a moving car.II. The motion of a loaded test tube oscillated vertically.III. The beating of the heart.IV. A stone tied to a string and whirled round.V. The motion of the pistons in a gasolin…
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2009
A bullet fired vertically from upward from a gun held 2.0 m above the ground reaches its maximum height in 4.0s. calculate its initial velocity.[g = 10ms-2]
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2009
What is the acceleration between two points on a velocity time graph which has coordinates (10s, 15 ms-1)And (20 s, 35 ms-1)?
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2009
I. Diameter of a small ball bearing.II. Thickness of a pieces of paper.III. Diameter of a measuring cylinder.IV. Length of a piece of wire.Which of the above can be measured using a micrometer screw gauge?
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2009
If a load of mass 10N stretched a cord by 1.2cm, what is the total work done?
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2009
I. Density of the liquid.II. Acceleration due to gravity.III. Type of container of the liquid.IV. The constituents of the liquid.Which of the above conditions will NOT affect the pressure of fluid?
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2009
If a heavy barrel is rolled up a plane inclined at 30° to the horizontal. its velocity ratio will be
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2009
An object of mass 80 kg is pulled on a horizontal rough ground by a force of 500 N. Find the coefficient of static friction.[g = 10 ms-2]
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2009
If a cage containing a truck of coal weighing 750 kg is raised to a height of 90 m in a minute, what is the total power expended? [g = 10 ms2]
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2009
If the pressure of the vapour on top of an enclosed liquid is equal to the atmospheric pressure, what will be the temperature of the liquid enclosed?
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2009
An electric heater rated 220v, 1000 w is immersed into a bucket full of water, calculate the mass of water if the temperature changes from 30°c to 100°c and the current flows for 300seconds.[specific heat capacity of wat…
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2009
At 4°c, the volume of a fixed mass of water is?
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2009
The thermometer whose reading is indicated by a change in colour of its thermometric property is the?
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2009
A plastic sphere floats in water with 50% of its volume submerged. if it floats in glycerine with 40% of its volume submerged,the density of the glycerine is?
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2009
Musical instruments playing the same note can be distinguished from one another owing to the differences in their
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2009
Metal cables are used as telephone wires because
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2009
A man standing 2 m from a charcoal fire is warmed mainly by
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2009
It is observed that water will wet a clean glass because the
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2009
A heating coil rated 1000 W is used to boil off completely 2 kg of boiling water. the time required to boil of the water is_______[Special latent heat of Vaporization of water = 2.3 x 106 Jkg-1]
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2009
When light passes through two media x and y of refraction indices 1.51 and 1.33 respectively, the speed of light in