1981 JAMB UTME Physics Past Questions

1981

An aircraft travelled from calabar to kano as follows: it flew first to ilorin convering a distance of 300km, 30o west of North, and then flew 400km, 60o East of North to kano. What is the resultant displacement?

1981

The resistance of a 240V, 60 watt electric filament bulb is

1981

The lack of power of accommodation which is mainly due to the hardening of the eye lens and is usual with onset of old age is called?

1981

The resistance of an open series circuit is

1981

Which type of radiation does not NOT originate within the nucleus?

1981

Which type of radiation does not NOT originate within the nucleus?

1981

Which of the following statements is CORRECT?

1981

Change of state is accompanied by change of

1981

A balloon inflated with helium gas at ground level is released. As it rises through a constant temperature atmosphere.

1981

Two particles X and Y starting from rest cover the same distance. The acceleration of X is twice that of Y. the ratio of the time taken by X to that taken by Y is

1981

Alternating current can induce voltage because it has a

1981

A body falls freely under gravity (g = 9.8ms-2) from a height of 40m on to the top of a platform 0.8m above the ground. Its velocity on reaching the platform is

1981

The extension in a spring when 5g wt was hung from it was 0.56cm. If Hooke's law is obeyed, What is the extension caused by a load of 20g wt?

1981

A liquid-in-glass thermometer should quickly register temperature changes. This is achieved by choosing a liquid that

1981

An object placed on the principle axis of a convex lens of focal length 10m produces a real image of double magnification. The image distance from the lens is

1981

The mass of a proton is approximately equal to that of

1981

The quantity (timbre) of sound depends on

1981

If I is the current passing through a metallic resistor and H is the rate of Heat generated in the resistor at a constant temperature, then

1981

A closed coil of wire is placed near a magnet. The magnet lies along the axis of the coil. Under which of the following conditions would there be no current in the coil?

1981

A transformer has 300 turns of wire in the primary coil and 30 turns in the secondary coil.If the input voltage is 100 volts, the output voltage is

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