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Physics Past Questions

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

48 questions
All JAMB WAEC NECO CUSTOM
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Question 1 of 8 48 total questions
Question 21
jamb 2016
Which of the following statements is correct about a machine?
AEfficiency of a machine is always greater than I
BEfficiency decreases with an increase in friction
CVelocity ratio depends on friction
DMechanical advantage increases with an increase in friction
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Question 22
jamb 2016

An object is placed 15cm in front of a plane mirror. If the mirror is moved further 5cm away from the object and the image is

A80cm
B40cm
C50cm
D70cm
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Question 23
jamb 2016
If the distance between the object and the pinhole of a pinhole camera is reduced by half the size of the image of the object
AIs quadrupled
BIs halved
CRemains the same
DIs double
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Question 24
jamb 2016
I.Chemical II.Sound III.Electricity

Which of the above forms of energy can directly be converted to light energy?
AI and II only
BII and III only
CI, II and III
DI and III only
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Question 25
jamb 2016
A satellite moves in a circular orbit of radius 4R round the earth. The acceleration of the satellite in terms of g is
A\(\frac{g}{16}\)
B\(\frac{g}{4}\)
C\(\frac{4}{g}\)
D\(\frac{16}{g}\)
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Question 26
jamb 2016
What happens to a water pool on a day when the humidity of the air is very low?
ATemperature decreases
BSlow evaporation
CTemperature increases
DRapid evaporation
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Question 27
jamb 2016
A charged particle is moving in a uniform magnetic field. if the direction of motion of the charged particle is parallel to the magnetic field, the path of the charge will
ABe a straight line
BCurve inwards
CBe a parabola
DCurve outwards
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Question 28
jamb 2016

Myopic defects in the human eye can be corrected through the use of a

AConcave Mirror
BConcave lens
CPrism
DConvex lens
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