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Sunday, 12 April 2026
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Physics Past Questions and Answers

Physics Questions

Question 4051:
To obtain a virtual, erect and magnified image from a thin converging lens, an object must be placed
  • A Between the focus and the lens
  • B At the focus
  • C Between the focal length and twice the focal length
  • D Beyond twice the focal length
View Answer & Explanation
Question 4052:
The diagram above represents a transverse travelling wave. Which two points are 180° out of phase?
  • A A and E
  • B B and D
  • C C and F
  • D D and H
View Answer & Explanation
Question 4053:
Two objects P and Q of masses 100kg and 20kg respectively are 1.2m apart on a horizontal surface. Calculate the net gravitational force acting on Q. \([G= 6.67 \times 10^{-11} Nm^{2}kg^{-2}]\)
  • A \(1.11\times 10^{-7} N\) towards P
  • B \(1.11\times 10^{-7} N\) towards Q
  • C \(9.26\times 10^{-8} N\) towards P
  • D \(9.26\times 10^{-8} N\) towards Q
View Answer & Explanation
Question 4054:
The primary of a transformer has 100 turns and its secondary has 200 turns. If the voltage at the primary is 100V, determine the voltage at the secondary.
  • A 50V
  • B 100V
  • C 200V
  • D 400V
View Answer & Explanation
Question 4055:
In the diagram illustrated a block of mass M is at rest on a plane inclined at an angle \(\theta\) to the horizontal. As \(\theta\) increases, the velocity ratio of the plane
  • A Increases
  • B Decreases
  • C Remain the same
  • D Decreases and later increases
View Answer & Explanation