2006
A quantity of steam at 100oC condenses to water at the same temperature by releasing 6.9 x 104J of energy. Calculate the mass of the condensed steam. [specific latent heat of vaporization of eater = 2.3 x 106 J kg-1]
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2006 WAEC SSCE Physics Past Questions
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2006
The amount of energy required to change a kilogram of ice in water without a change in temperature is
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2006
How long will it take to heat 3kg of water from 28oC to 88oC in an electric kettle taking 6a from a 220V supply? [specific heat capacity of water = 4180 J kg-1K-1]
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2006
A ray from a fixed object is incident on a plane mirror at an angle of 20o. If the mirror is rotated through 30o by how many degree would the reflected ray rotate?
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2006
The distance between the successive crests of a wave travelling at 20ms-1 is 25cm. Calculate the frequency of the wave
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2006
Which of the following observations cannot be explained using the rectilinear propagation of light?
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2006
The eclipse of the moon occurs when the
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2006
a note of frequency 2000Hz has a velocity of 400 ms-1. calculate the wavelength of the note
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2006
The acceleration due to gravity may be defined as the force
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2006
Which of the following actions is necessary in order to tune a string to produce a note of an octave higher than its fundamental?
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2006
In which of the following media would sound wave travel fastest?
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2006
A travelling microscope is focused on a mark on a table. If a glass block of thickness 18.0cm is placed on the mark by how many centimeters will the microscope be moved upwards so as to focus the mark once again? [refrac…
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2006
Which of the following distances is usually adjustable in the camera? The distance between the
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2006
a cell of e.m.f. 1.5V and internal resistance 1.0\(\Omega\) is connected to two resistor of resistance 2.0\(\Omega\) and 3.0\(\Omega\) in series. Calculate the current through the resistors
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2006
The equivalent capacitance of a 3\(\mu F\) capacitor and a 6\(\mu F\) capacitor connected in parallel is
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2006
Which of the following factors does not affect the capacitance of a parallel plate capacitor?
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2006
An electron of mass m and charge \(\Box\) enters a uniform electric field between two metal plates P and q separated by a distance d. P is maintained at a potential V while Q is earthed. Determine an expression for the m…
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2006
A radioactive substance of mass 768g has a half life of 3 years. After how many years does this substance leave only 6g undecayed?
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2006
A 500kV is applied across an X-ray tube. Calculate the maximum velocity of the electrons produced [Me = 9.1 x 10-31kg, e = 1.6 x 10-19C]
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2006
The breaking up of an atomic nucleus into the fragment of nearly equal size is known as
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