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Tuesday, 18 August 2026
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Physics Past Questions and Answers

Topic: Mechanical and electromagnetic waves

Jamb Physics Questions - Mechanical and electromagnetic waves

Question 36:
Which of the following electromagnetic waves is least energetic?
  • A Infra-red rays
  • B X-rays
  • C Ultra-violet rays
  • D Gamma rays
View Answer & Explanation
Question 37:
The small droplets of water that form on the grass in the early hours of the morning is
  • A Fog
  • B Haul
  • C Mist
  • D Dew
View Answer & Explanation
Question 38:
What type of electromagnetic radiation can be used to take photographs in the haze?
  • A Radio waves
  • B Infrared rays
  • C Visible light
  • D Gamma rays
View Answer & Explanation
Question 39:
I.Chemical II.Sound III.Electricity
Which of the above forms of energy can directly be converted to light energy?
  • A I and II only
  • B II and III only
  • C I, II and III
  • D I and III only
View Answer & Explanation
Question 40:
Which of the following electromagnetic waves has the shortest wavelength?
  • A Visible Light
  • B Ultraviolet rays
  • C Infrared rays
  • D Gamma rays
View Answer & Explanation