1999 JAMB UTME Physics Past Questions

1999

The inner diameter of a test tube can be measured accurately using a

1999

A solid weigh 10 .00 N in air, 6 N when fully immersed in water and 7 . 0 N when fully immersed in a liquid X. Calculate the relative density of the liquid, X.

1999

A ball of mass 0.1kg is thrown vertically upwards with a speed of 10ms-1 from the top of a tower 10m high. Neglecting air resistance, its total energy just before hitting the ground is(take g = 10ms-2)

1999

a lead bullet of mass 0.05kg is fired with a velocity of 200ms-1 into a lead block of mass 0.95kg. Given that the lead block can move freely, the final kinetic energy after impact is

1999

Particles of mass 10-2kg is fixed to the tip of a fan blade which rotates with angular velocity of 100rad-1. If the radius of the blade is 0.2m, the centripetal force is

1999

Two bodies have masses in the ratio 3:1. They experience forces which impart to them acceleration in the ratio 2:9 respectively. Find the ratio of forces the masses experienced.

1999

When temperature of a liquid increases, its surface tension

1999

A solid weigh 10 .00 N in air, 6 N when fully immersed in water and 7 . 0 N when fully immersed in a liquid X. Calculate the relative density of the liquid, X.

1999

If the stress on a wire is 107NM-2 and the wire is stretched from its original length of 10.00 cm to 10.05 cm. The young's modulus of the wire is

1999

When the brakes in a car are applied, the frictional force force on the tyres is

1999

A car of mass 800kg attains a speed of 25m/s in 20 secs. The power developed in the engine is

1999

Calculate the mass of ice that would melt when 2kg of copper is quickly transferred from boiling water to a block of ice without heat loss;Specific heat capacity of copper = 400JKg-1K-1Latent heat of fusion of ice = 3.3…

1999

The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20°C and 80°C respectively is

1999

I. A liquid boils when its saturated vapour pressure is equal to the external pressureII. Dissolved substances in pure water lead to increase in the boiling point.III. When the external pressure is increased, the boiling…

1999

A piece of substance of specific head capacity 450JKg-1K-1 falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the substance on hitting the ground when all its energies are converted…

1999

A gas at a volume of V0 in a container at pressure P0 is compressed to one-fifth of its volume. What will be its pressure if the magnitude of its original temperature T is constant?

1999

The inside portion of part of a hollow metal sphere of diameter 20cm is polished. The portion will therefore form a

1999

A man stands 4m in front of a plane mirror. If the mirror is moved 1m towards the man, the distance between him and his new image is

1999

The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there between 40hz and 180Hz?

1999

If a sound wave goes from a cold air region to a hot air region, its wavelength will

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