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.

• Question 681: The instrument that measures both a.c and d.c is? Options:
  A) a current balance
  B) a moving current ammeter
  C) a moving iron ammeter
  D) an inverter
  Show Answer
  The correct answer is C .
• Question 682: The motion of the prongs of a sounding turning fork is Options:
  A) circular
  B) oscillatory
  C) random
  D) rotational
  E) translational
  Show Answer
  The correct answer is B .
• Question 683: 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
  Show Answer
  The correct answer is D .
• Question 684: A boy observes a piece of stone at the bottom of a river 6.0m deep. If he looks from the surface of the river, what is the apparent distance of the stone from him? [Refractive Index of Water = 4/3] Options:
  A) 8.0m
  B) 5.5m
  C) 5.0m
  D) 4.5m
  Show Answer
  The correct answer is D .
• Question 685: When the temperature difference between the wet and dry bulbs of a hygrometer is high, this indicates that Options:
  A) it is about to rain
  B) the relative humidity is high
  C) there is plenty of sunshine
  D) the relative humidity is low
  Show Answer
  The correct answer is D .
• Question 686: The speed of light in air is 3 x 10⁸ms^-1. If the refractive index of light from air-to-water is $\frac{4}{3}$, then which of the following is the correct value of the speed of light in water? Options:
  A) 4 x 10⁸ms^-1
  B) 2.25 x 10⁸ms^-1
  C) $\frac{4}{9}$ x 10⁸ms^-1
  D) 2.25 x 10²ms^-1
  E) 4.33 x 10⁸ms^-1
  Show Answer
  The correct answer is B .
• Question 687: The eclipse of the sun occurs when the Options:
  A) moon is between the sun and the earth
  B) earth is between the sun and the moon
  C) moon is not completely hidden in the earth's shadow
  D) moon's umbra falls on some part of the earth
  Show Answer
  The correct answer is A .
• Question 688: The rate of cooling of a heated quantity of liquid in an enclosure depends on the Options:
  A) Pressure of the liquid
  B) Temperature in the enclosure
  C) Pressure of the enclosure
  D) Volume of the liquid
  Show Answer
  The correct answer is B .
• Question 689:

  A man will exert the greatest pressurewhen he?

  Options:
  A) lies flat on his back
  B) lies on his belly
  C) stands on both feet
  D) stands on the toes of one foot
  Show Answer
  The correct answer is D .
• Question 690: which of the following is NOT correct? i. the pitch of a sound note depends on the frequency of vibrations. ii. the intensity of a sound note is proportional to the amplitude of vibrations. iii. beats are produced by two sources of sound because one wave is travelling faster than the other. iv. when two sources of sound of frequencies 500Hz and 502Hz are sounded together, a beat frequency of 2Hz is observed. v. the first harmonic of a tone have double the frequency of the fundamental note. Options:
  A) i and ii
  B) ii and iii
  C) i and iii
  D) iii and iv
  E) iv and v
  Show Answer
  The correct answer is A .