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 261: At reasonance, the phase angle in an a.c. circuit is Options:
  A) 90°
  B) 60°
  C) 0°
  D) 180°
  Show Answer
  The correct answer is C .
• Question 262: When a ship sails from salt water into fresh water, the fraction of its volume above the water surface will Options:
  A) increase
  B) decrease
  C) remain the same
  D) increase then decrease
  Show Answer
  The correct answer is B .
• Question 263: The heights of the mercury thread in a mercury-in-glass thermometer when in melting ice and then in steam are 3cm and 18cm respectively. At a temperature of 60^oC the height would be Options:
  A) 7.5cm
  B) 9cm
  C) 10.8cm
  D) 12cm
  E) 12.6cm
  Show Answer
  The correct answer is D .
• Question 264: Calculate the upthrust on an object of volume 50cm³ which is immersed in liquid of density 103kgm^-3 [g = 10ms^-2] Options:
  A) 0.8N
  B) 2.5N
  C) 0.5N
  D) 1.0N
  Show Answer
  The correct answer is C .
• Question 265: The force on a current carrying conductor in a magnetic field is greatest when the Options:
  A) conductor makes an angle of 60° with the field
  B) force is idependent of the angles between the fields and the conductor
  C) conductor is parallel with the field
  D) conductor is at right angle with the field
  Show Answer
  The correct answer is D .
• Question 266:

  Which of the statements about prism binoculars is/are correct? They I. are a pair of two telescopes mounted side by side

  II. reduce the optical path of the light ray from the objective to the eye piece

  III, present inverted and diminished image to the viewer

  IV. present erect and magnified image to the viewer.

  Options:
  A) I only
  B) II only
  C) I and II only
  D) I, II and IV only
  E) II, III and IV only
  Show Answer
  The correct answer is D .
• Question 267: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E .
• Question 268:

  

  An electrical circuit is connected up as shown above, which of the following is correct about the value of current flowing through the 1 ohm resistance?

  Options:
  A) 12/13A
  B) 13/12A
  C) 1/3A
  D) 3A
  E) 12/7A
  Show Answer
  The correct answer is D .
• Question 269:

  

  For the wave motion represented above, the wavelength is given by

  Options:
  A) p
  B) q
  C) r
  D) s
  E) t
  Show Answer
  The correct answer is D .
• Question 270: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .