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Friday, 22 May 2026
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Physics Past Questions and Answers

Jamb 1995 Physics Questions

Question 26:
Total eclipse of the sun occurs when the
  • A Earth is between the moon and the sun
  • B Sun is between the moon and the earth
  • C Moon is between the sun and the earth
  • D Ozone layer is threatened
View Answer & Explanation
Question 27:
What is the approximate critical angle for total internal reflection for diamond if the refractive index of diamond is 2.42?
  • A 21<sup style='font-size: smaller;'>o</sup>
  • B 22<sup style='font-size: smaller;'>o</sup>
  • C 23<sup style='font-size: smaller;'>o</sup>
  • D 24<sup style='font-size: smaller;'>o</sup>
View Answer & Explanation
Question 28:
A real object is placed at a distance ucm in front of a curved mirror of focal length fcm. If the image is upright and magnified, then the mirror is
  • A Convex and u =2f
  • B Concave and u = 2f
  • C Convex and u = f
  • D Concave and u = f
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Question 29:
Which of the following pairs of colours gives the widest separation in the spectrum of white light?
  • A Red and Violet
  • B Green and Yellow
  • C Red and Indigo
  • D Yellow and Violet
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Question 30:
Two parallel plates at a distance of 8.0 x 10-3m apart are maintained at a p.d of 600 volts with the negative plate earthed. What is the electric field strength?
  • A 4.8 Vm<sup style='font-size: smaller;'>-1</sup>
  • B 75.0Vm<sup style='font-size: smaller;'>-1</sup>
  • C 4800.0Vm<sup style='font-size: smaller;'>-1</sup>
  • D 75000.0Vm<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation