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Saturday, 02 May 2026
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Physics Past Questions and Answers

Jamb Physics Questions

Question 316:
Which of the following properties of matter CANNOT be utilized for temperature measurement? The
  • A Length of a liquid column
  • B Volume of a gas at constant pressure
  • C Pressure of a gas at constant volume
  • D Resistance of a metallic wire
  • E Current produced in a photoelectric effect
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Question 317:
Which of the following statements about the compound microscope and astronomical telescope is (are) correct? i. the final image of a compound microscope is located at infinity ii. the final image of the astronomical telescope is always erect iii. the objective lens of a compound microscope has a very short focal length
  • A I only
  • B Ii only
  • C Iii only
  • D I and iii
  • E Ii and iii
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Question 318:
A coin is placed at the bottom of a cube of glass tern thick. If the refractive index of the glass is \(\mu\), how high does the coin appear to be raised to an observer looking perpendicularly into the glass?
  • A \(\frac{1}{t - \mu}\)
  • B \(\frac{t(\mu - I)}{\mu}\)
  • C T (1 + \(\frac{1}{\mu}\))
  • D -\(\mu\)
  • E \(\mu\)t
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Question 319:
The electromotive force obtained from a simple dynamo may be increased by
  • A Increasing the cross-sectional area of the coil
  • B Winding the coil on a soft-iron armature so as to decrease the magnetic flux through the coil
  • C Increasing the speed of rotation
  • D Making the field magnet longer
  • E Using low-resistance copper coils
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Question 320:
A gun of mass 2.0kg fires a bullet of mass 16 x 10 -2kg due East. If the bullet leaves the nozzle of the gun with a velocity of 150ms-1, what is the recoil velocity of the gun?
  • A 150ms<sup style='font-size: smaller;'>-1</sup> due West
  • B 1.2 x 10<sup style='font-size: smaller;'>-4</sup>ms<sup style='font-size: smaller;'>-1</sup> due West
  • C 1.2ms<sup style='font-size: smaller;'>-1</sup> due West
  • D 1.2ms<sup style='font-size: smaller;'>-1</sup> due East
  • E 150ms<sup style='font-size: smaller;'>-1</sup> due East
View Answer & Explanation