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 221: 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
  Show Answer
  The correct answer is B .
• Question 222: Two objects, one having three times the mass of the other, are dropped at the same time from a tall building. When they are above the ground, the two objects will have the same Options:
  A) Momentum
  B) Kinetic energy
  C) Potential energy
  D) Acceleration
  Show Answer
  The correct answer is C .
• Question 223: In a large telecommunications auditorium, perforated absorbent materials are used to line the ceiling so as to Options:
  A) Increase the reverberation of sound in the hall
  B) increase the amount of echo in the hall
  C) reduce the hight of the ceiling from the floor
  D) reduce the reverberation of sound in the hall
  Show Answer
  The correct answer is D .
• Question 224:

  An astronomical telescope is said to be in normal adjustment when the?

  Options:
  A) eye is accommodated
  B) focal length of an object lens is longer than that of eye piece
  C) final image is at the near point of eye
  D) final image is at infinity
  Show Answer
  The correct answer is D .
• Question 225:

  Which of the following is NOT an example of elementary modern physics?

  Options:
  A) Classical mechanics
  B) Quantum mechanics
  C) Special relativity
  D) Nuclear physics
  Show Answer
  The correct answer is A .
• Question 226: The time rate of loss of heat by a body is proportional to the Options:
  A) difference in temprature between the body and its surroundings
  B) temperature of its surroundings
  C) ratio of the temperature of the body to that of its surroundings
  D) temperature of the body
  Show Answer
  The correct answer is A .
• Question 227:

  Two bodies have masses in the ratio3:1. They experience forces whichimpart to them,acceleration in the ratio 2:9 respectively. Find the ratio of forces the masses experienced

  Options:
  A) 1:4
  B) 2:1
  C) 2:3
  D) 2:5
  Show Answer
  The correct answer is C .
• Question 228: Which of the following radiations cannot be deflected by a magnetic field? Options:
  A) $\alpha$
  B) $\beta$
  C) $\gamma$
  D) $\beta$ and $\gamma$
  E) none of them
  Show Answer
  The correct answer is C .
• Question 229: The velocity ratio of a machine is 5 and its efficiency is 75%. What effort would be needed to lift a load of 150N with the machine? Options:
  A) 20N
  B) 30N
  C) 40N
  D) 50N
  Show Answer
  The correct answer is C .
• Question 230:

  If in a simple pendulum experiment the length of the inextensible string is increased by a factor offour, its period is increased by a factor of?

  Options:
  A) 4
  B) $\frac{\pi }{2}$
  C) $\frac{1}{4}$
  D) 2
  Show Answer
  The correct answer is D .