Physics Exam Past Questions and Answers | JAMB, WAEC and NECO
Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.
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Question 111: Which of the following electromagnetic waves has the shortest wavelength?
Options:
A) Visible Light
B) Ultraviolet rays
C) Infrared rays
D) Gamma rays
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The correct answer is D .
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Question 112: 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
Options:
A) 80cm
B) 40cm
C) 50cm
D) 70cm
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The correct answer is B .
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Question 113: Which of the following consists entirely of vector quantities?
Options:
A) Velocity, magnetic fulx and reaction
B) Tension, magnetic flux and mass
C) Displacement, impulse and power
D) Work, pressure and moment
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The correct answer is A .
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Question 114:
Which of the following is a type of wave that is both mechanical and longitudinal?
Options:
A) Water waves
B) Seismic waves
C) Sound waves
D) Light waves
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The correct answer is C .
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Question 115: A series RLC circuit is said to resonate, when
Options:
A) capacitive reactance is zero
B) conductance is maximum
C) current is minimum
D) impedance is minimum
E) inductive reactance is zero
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The correct answer is D .
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Question 116: Which material is best for making a permanent magnet?
Options:
A) aluminium
B) cobalt
C) copper
D) soft iron
E) steel
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The correct answer is E .
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Question 117: A body of mass 4kg is acted on by a constant force of 12N for 3 seconds. The kinetic energy gained by the body at the end of the time is
Options:
A) 144J
B) 162J
C) 81J
D) 72J
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The correct answer is B .
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Question 118: The angle between the direction of the earth's magnetic field and the horizontal is called the
Options:
A) angle of deviation
B) magnetic declination
C) magnetic meridian
D) angle of dip
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The correct answer is D .
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Question 119: The unit of inductance is
Options:
A) Weber
B) Telsa
C) Hertz
D) Henry
E) Farad
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The correct answer is D .
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Question 120: A 3m3 volume of liquid W of density 200kgm3 is mixed with another liquid L of volume 7m3 and density 150kgm-3. the density of mixture is?
Options:
A) 165kgm-3
B) 100kgm-3
C) 265kgm-3
D) 350kgm-3
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The correct answer is A .