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Physics Past Questions

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108 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10
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Past Questions

108 questions
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Question 1 of 8 108 total questions
Question 51
jamb 1992

In an experiment to determine Young's Modulus for a wire, several loads are attached to the wire and the corresponding extension measured. The tensile stress in each case depends on the

Aload and the extension
Bload and the radius of the wire
Cradius of the wire and the extension
Dextension and the original length of the wire
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Question 52
jamb 1992
A machine requires 1000J of work to raise a load of 500N through a vertical distance of 1.5m. Calculate the efficiency of the
A80%
B75%
C50%
D33%
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Question 53
jamb 1992
A man weight 800N climbs up a stairs to height of 15m in 12.5s. What is the man''s average power output?
A667W
B810W
C960W
D15000W
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Question 54
jamb 1992
A stone, Q is thrown with velocity U at an angle of 75o to the horizontal. Another stone R is thrown with the same velocity U but with an angle of 15o to the horizontal. The ranges covered by the stones will be
Agreater for Q
Bgreater for R
Cthe same for Q and R
Dgreater for the heavier of the two stones
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Question 55
jamb 1992

A body starts from rest and moves with a uniform acceleration of 6 ms \(^{-2}\). What distance does it cover in the third seconds

A15m
B18m
C27m
D30m
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Question 56
jamb 1992

A boy sits in a train moving with uniform speed on a straight track. If from his outstretched palm he gently tosses his coin upwards, the coin will fall

Ain front of his palm
Bbehind his palm
Cbeside his palm
Dinto his palm
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Question 57
jamb 1992
Which of the following affects the period of a simple pendulum? i. mass of the pendulum bob. ii. length of the pendulum. iii. acceleration due to gravity.
Ai, ii, and iii
Bii and iii only
Ci and iii only
Di and ii only
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Question 58
jamb 1992

What is the least possible error in using a rule graduated in centimeters?

A0.1cm
B0.5cm
C1.0cm
D2.0cm
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