1993
A solid metal cube of side 10 cm is heated from10oC to 60oC. lf the linear expansivity of the metal is 1.2 x 105K-1, calculate the increase in its volume.
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1993 WAEC SSCE Physics Past Questions
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1993
The expansion of solids can be considered a disadvantage in the
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1993
A lens of focal length 15.0 cm forms an upright image four times the size of an object. Calculate the distance of the image from the lens
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1993
An image which cannot be formed on a screen is said to be
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1993
The quality of a note produced by a vibrating string is determined by the
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1993
Which of the following is correct about light and sound waves?
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1993
Which of the following have the longest wavelengths?
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1993
In a ripple tank experiment, a vibrating plate is used to generate ripples in the water. If the distance between two successive troughs is 3.5 cm and the wave travels a distance of 31.5 cm in 1.5 s, calculate the frequen…
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1993
Which of the following indicates the correct sequence of steps taken in charging a gold-leaf electroscope by induction? l. Removing the ebonite rod ll. Bringing a negatively charged ebonite rod close to the cap III. Eart…
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1993
The vector diagram shown below represents the resistance R, the capacitive reactance Xc, the inductive reactance Xc and the impedance, Z in an R-L-C circuit. The current in the circuit will be maximum when
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1993
In a series R - C circuit, the resistance of the resistor is 4 Ω and capacitive reactance is 3 Ω. Calculate the impedance of the circuit
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1993
What is the gravitational potential due to a point mass m at a distance from it? (G = gravitational constant)
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1993
Calculate the escape velocity of a satellite launched from the earth’s surface (Take g as 10ms-2 and the radius of the earth as 6.4 x 106m)
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1993
A household refrigerator consumes electrical energy at the rate of 200 W. lf electricity costs 5 k per kWh, calculate the cost of operating the appliance for 30 days.
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1993
A particle of charge 5C moves perpendicularly to a magnetic Held of magnitude C.01 T. If the velocity of the charge is 1.5ms'2, calculate the magnitude of the force exerted on the particle
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1993
Which of the following have the greatest penetrating power?
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1993
The potential difference between two points A and B situated at a distance d apart is V. Which of the following expresses the magnitude of the electric field intensity between the two points assuming the field is uniform…
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1993
A point charge of 1.0 x 10-7 C experiences force of 0.01 N in a uniform electric field. Calculate the magnitude of the strength of the field
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1993
In a purely resistive a.c. circuit, the current I = Io sin wt and voltage, V = Vo sin wt. Calculate the instantaneous power dissipated in the circuit in time t.
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1993
Which of the following is not a conductor of electricity?
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