2000
A piece of metal of mass 50g is cooled from 80oC to 20oC. Calculate the amount of heat lost. (specific heat capacity of the material of metal = 450Jkg-1K-1)
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2000 WAEC SSCE Physics Past Questions
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2000
The volume and pressure of a given mass of gas at 27oC are 76cm3 and 80cm of mercury respectively. Calculate the volume at s.t.p
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2000
When white light passes through a triangular glass prism, there is dispersion because of
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2000
A simple microscope forms an image 10cm from an eye close to the lens. If the object is 6cm from the eye, calculate the focal length of the lens
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2000
A concave mirror can be used to produce a parallel beam of light if a lighted bulb is placed
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2000
In the diagram above, an incident ray AY makes an angle of 30o with the normal XY. If the mirror is rotated anticlockwise about Y through an angle of 20o, while AY is fixed, what angle will the reflected ray now make wit…
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2000
A wave has an amplitude equal to 4.0m, angular speed \(\frac{1}{3} \pi\) rads-1 and phase angle \(\frac{2}{3} \pi\) rad. The displacement y of the wave particle is given as
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2000
An object is situated within the Earth's gravitational field. Which of the following factor does not affect the acceleration of free fall g?
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2000
the factor which enables the ear to distinguish between a note played on different instruments is the
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2000
loudness increases as a vibrating tuning fork is brought nearer the end of a pipe containing air column due to
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2000
A turning fork of frequency 600Hz is sounded over a closed resonance tube. If the first and second resonant positions are 0.140m and 0.413m respectively, calculate the speed of sound in air
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2000
In which of the following media does sound travel faster?
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2000
The region around a magnet in which the magnetic influence is experienced is called
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2000
An immersion heater is rated 120W. How long does it take the heater to raise the temperature of 1.2kg of water by 15oC. (Assuming heat lost to the surrounding is negligible. Specific heat capacity of water = 4200 Jkg-1K-…
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2000
In the diagram given, the current passing through the 6\(\Omega\) resistor is 1.5A. Calculate the terminal p.d. of the battery in the diagram
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2000
In the diagram above, the current passing through the 6\(\Omega\) resistor is 1.5A. Calculate the current in the 3\(\Omega\) resistor
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2000
Borh's theory provides evidence for the
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2000
calculate the inductance of an inductor whose reactance is one ohm at 50 Hz.
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2000
An inductor of inductance 10H carries a current of 0.2A. Calculate the energy stored in the inductor
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2000
A device used to prevent wearing away of the make and-brake contacts of an induction coil is called a\an
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