1979 JAMB UTME Physics Past Questions

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1979

A 500kg car which was initially at rest travelled with an acceleration of 5m sec-2, its kinetic energy after 4 seconds was

1979

Which of the following statements defines correctly the efficiency of a machine?

1979

The density 400cm3 of palm oil was 0.9gcm-3 before frying. If the density of the oil was 0.6gm-3 after frying,assuming no loss of oil due to spilling, its new volume was

1979

In what range of temperature is the expansion of water anomalous?

1979

If in a simple pendulum experiment the length of the inextensible string is increased by a factor of four, its period is increased by a factor of

1979

Which of the following types of waves cannot travel through a vacuum?

1979

The temperature at which the water vapour present in the air saturates the air and begins to condense is known as

1979

Two closed vessels contain equal volumes of boiling water and are identical except that one is blackened on the outside while the other is polished. Which of the following is correct?

1979

If a given mass at constant pressure obeys the relation...volume is proportional to the absolute temperature...the gas is said to obey

1979

An object is placed 30cm from a concave mirror of focal length 15cm. the linear magnification of the image produced is

1979

The heights of the mercury thread in a mercury-in-glass thermometer when in melting ice and then in steam are 3cm and 18cm respectively. At a temperature of 60oC the height would be

1979

If the wavelength of a wave travelling with a velocity of 360ms-1 is 60cm, the period of the wave is

1979

When the vapour of a substance is in equilibrium with its own liquid, it is said to be

1979

What are the units of thermal conductivity?

1979

Which of the following statements is correct? The reading of pressure on a mercury barometer is independent of

1979

A landlord has eight 40W electric light bulbs, four 60W bulbs and two 100W bulb in his house. If he has all the points on for five hours daily and if N.E.P.A. charges 5k per unit, his bill for 30 days is

1979

Which of the following statements is incorrect? The sensitivity of a galvanometer which incorporates an optical lever arrangement may be increased by providing

1979

A man standing between two parallel mirrors in a barber's shop will see the following number of his own image

1979

In an electrolysis experiment, a cathode of mass 5g is found o weigh 5.01g after a current of 5A flows for 50 seconds. What is the electrochemical equivalent of the deposited substance?

1979

The bulb of a motorcycle head-lamp is marked 40W, 6V. The resistance of the filament when it is switched on is

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