1988 WAEC SSCE Physics Past Questions

1988

Which of the following statments about radiant heat is/are correct?I. radiant heat cannot travel through a vaccumII. rough surfaces emit radiant heat more than polished surfacesIII. Dark surfaces absorb radiant heat more…

1988

In which of the following is the expansion of solids a disadvantage?

1988

The velocities of light in air and glass are 3.0 x108ms-1 respectively. Calculate the sine of the angle of incidence that will produce an angle of refraction of 30 for a ray of light incident on glass.

1988

A transparent rectangular block 5.0cm thick is placed on a black dot. The dot when viewed from above is seem 3.0cm from the top of the block calculate the refractive index of the material of the block.

1988

Which of the following statements is/are not correct about image formed by a plane mirror?I. The magnification produced is 1II. The image distance is same as the object distanceIII. The image is realIV. The image is late…

1988

Which of the following will affect the saturation vapour pressure of a liquid?

1988

Which of the following instrument may be used to measure the relative humidity?

1988

A source of sounds produces waves in air of wavelength1.65m. If the speed of sound in air is 330ms-1 the period of vibration in seconds is

1988

The ability of the eye to focus objects at different distances is called

1988

An object is placed 36cm from a converging lens of focal length 24cm.If a real image which is 4cm high is formed, Calculate the height of the object.

1988

If the leaves a positively charged electroscope collapse completely as an object is brought near the cap of the electroscope, the objects possesses

1988

A sounding tuning fork is brought near the end of a pipe containing an air column and the loudness of the sound increases. This effect is due to

1988

A boy standing a distance from the foot of a tall cliff claps his hands and hears an echo 0.5s later. If the speed of sound is 340ms1, how far is he from the cliff?

1988

A lamp is marked 220V 60 W. Calculate the energy it would consume when connected to a 220V source for 1 hour.

1988

Two parallel conductors carry equal currents in the same direction. Which of the following statement is not a correct observation?

1988

A battery of emf 24V and internal resistance 4Ω is connected to a resistor of 32Ω. What is the terminal p.d of the battery?

1988

A cell can supply current of 0.8A and 0.4A through a 2Ω and a 3Ω resistors respectively. Calculate the internal resistance of the cell.

1988

When sugar at the bottom of a glass of water gradually dissolves, the water level does not change applicably. Which of the following statements best describe this?

1988

Which of the following particles of ray has the highest penetrating power?

1988

Calculate the resistivity of a wire of length 2m and cross-sectional area 0.004cm2 if the resistance is 3.0 Ω.

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