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 241: Which of the following properties is NOT exhibited by sound waves?
Options:
A) Diffraction
B) interference
C) Polarisation
D) Reflection
E) Refraction
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The correct answer is C .
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Question 242: Which of the following statements is CORRECT? i. the mass number is equal to the total number of protons and electrons in an atom. ii. the atomic number is equal to the number of protons in an atom. iii. the number of electrons in an atom is equal to the total number of protons and neutrons in the nucleus.
Options:
A) i only
B) ii only
C) iii only
D) i and ii only
E) ii and iii only
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The correct answer is B .
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Question 243: Which type of radiation does not NOT originate within the nucleus?
Options:
A) alpha
B) beta
C) gamma
D) neutron
E) x-rays
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The correct answer is E .
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Question 244: 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 245: According to Ohm's law, the ratio V/I is constant for
Options:
A) an electrolyte
B) a diode
C) a transistor
D) silver
E) all of the above
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The correct answer is D .
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Question 246: For correcting long sight defects in the human eye we require a
Options:
A) converging lens
B) diverging lens
C) microscope
D) periscope
E) plain glass sheet
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The correct answer is A .
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Question 247: Which of the following pairs of light rays show the widest separation in the spectrum of white light
Options:
A) Blue and red
B) Green and yellow
C) Indigo and violet
D) Orange and red
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The correct answer is A .
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Question 248: The effect of a particle in a fluid attaining its terminal velocity is that the
Options:
A) acceleration is maximum
B) weight is equal to the retarding force
C) buoyancy force is equal to the to the viscous retardind force
D) buoyancy force is more than the weight of the fluid displaced
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The correct answer is B .
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Question 249: In which of the following arrangements is the wavelength in an increasing order?
Options:
A) Gamma rays, infra-red rays, x-rays, radiowaves
B) Gamma rays, x-rays, infra-red ray, radiowaves
C) Radiowaves, x-rays, gamma ray, infra-red rays
D) Infra-red rays, radiowaves, x-rays, gamma rays
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The correct answer is B .
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Question 250: Boiling occurs when the vapour pressure of a liquid is
Options:
A) At the evaporation point
B) Less than the atmospheric pressure
C) Greater than the atmospheric pressure
D) Equal to the atmospheric pressure
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The correct answer is D .