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 331: Two insulated charged spheres of different sizes and carrying opposite charges are connected together by a metallic conductor. Current will flow from one sphere to the other until both sphere Options:
  A) carry the same magnitude and sign of charge
  B) are at the same potential
  C) are at the same temperature
  D) are of the same size
  Show Answer
  The correct answer is B .
• Question 332: The r.m.s value of a supply voltage is quoted at 200v. What is the approximate peak value of the voltage? Options:
  A) 200volts
  B) 300volts
  C) 283volts
  D) 250volts
  Show Answer
  The correct answer is C .
• Question 333:

  A semiconductor is formed by?

  Options:
  A) co-ordinate bonds
  B) electrovalent bonds
  C) a substance free of bonds
  D) covalent bonds
  Show Answer
  The correct answer is D .
• Question 334: An aircraft travelled from calabar to kano as follows: it flew first to ilorin convering a distance of 300km, 30^o west of North, and then flew 400km, 60^o East of North to kano. What is the resultant displacement? Options:
  A) 567km
  B) 410km
  C) 594km
  D) 500km
  E) 600km
  Show Answer
  The correct answer is D .
• Question 335:

  A convex mirror is used as a driving mirror because
  i. its image is erect.
  ii. it has a large field of view.
  iii. it has a long focal length.

  Identify the CORRECT statement(s)

  Options:
  A) i andiii only
  B) i and ii only
  C) ii and iii only
  D) i, ii, and iii only
  E) i only
  Show Answer
  The correct answer is B .
• Question 336: A particle of mass M which is at rest splits up into two. If the mass and velocity of one of the particles are m and v respectively, calculate the velocity of the second particle Options:
  A) $\frac{mv}{M}$
  B) $\frac{Mv}{M-m}$
  C) $\frac{mv}{M+m}$
  D) $\frac{mv}{M-m}$
  Show Answer
  The correct answer is D .
• Question 337:

  Arrange the following in the order of their increasing frequency.I. Visible light

  II. Gamma rays

  III. Radio waves

  IV. Infra-red radiation

  V. Ultra-violet radiation

  Options:
  A) I, II, III, IV, V
  B) II, III, IV, V, I
  C) III, IV, V, I, II
  D) IV, III, I. V, II
  E) III, IV, I,V, II
  Show Answer
  The correct answer is E .
• Question 338: The colours seen in the thin films of oil on the road and in soap bubbles are due to Options:
  A) reflection
  B) interference
  C) diffraction
  D) polarization
  Show Answer
  The correct answer is A .
• Question 339: The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth? Options:
  A) 1.92N
  B) 2.88N
  C) 6.72N
  D) 8.00N
  E) 12.00N
  Show Answer
  The correct answer is E .
• Question 340: A negatively charged rod is brought near the cap of an electroscope. The cap is earthed momentarily while the charge is near to it. The rod is then removed. Which statement is correct? Options:
  A) The cap will be positively charged and the will be negatively charged
  B) The cap will be negatively charged and the leaf will be positively changed
  C) The cap and the leaf will be positively charged
  D) The cap and the leaf will be negatively charged
  E) none
  Show Answer
  The correct answer is D .