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Thursday, 29 October 2026
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Physics Past Questions and Answers

Jamb 1981 Physics Questions

Question 11:
Heat may be transferred by conduction, convection and radiation. By which of these methods does heat travel through vacuum?
  • A Conduction only
  • B Convection only
  • C Radiation only
  • D Non of these methods
View Answer & Explanation
Question 12:
Which of the following statements is applicable to a real image formed by a concave mirror? i. it can be observed on a screen ii. it is always inverted and in front of the mirror iii. it only seams to exist IV. it is formed by the actual converging of rays of light
  • A I, ii and iii
  • B I, ii and iv only
  • C I and ii only
  • D I and ii only
  • E All four statements
View Answer & Explanation
Question 13:
Which of the following is NOT an effect that can be produced by an electric current?
  • A Heat
  • B Light
  • C Sound
  • D Motion
  • E None of the above
View Answer & Explanation
Question 14:
A cell of e.m.f 2V and internal resistance 1\(\Omega\) supplies a current of 0.5 amps to a resistance whose value is
  • A 0.5\(\Omega\)
  • B 1\(\Omega\)
  • C 2\(\Omega\)
  • D 2.5\(\Omega\)
  • E 3\(\Omega\)
View Answer & Explanation
Question 15:
An example of a scalar quantity is
  • A Velocity
  • B Weight
  • C Electric charge
  • D Acceleration due to gravity
  • E Momentum
View Answer & Explanation