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Sunday, 24 May 2026
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Physics Past Questions and Answers

Jamb 2020 Physics Questions

Question 36:
[examqimage]https://www.schoolngr.com/eattachments/e8873e71112aaba7b6c26e0c0f0208822cc95e2a[/examqimage] In which of the following diagrams is the length of the tube equal to one wavelength?
  • A A
  • B B
  • C C
  • D D
View Answer & Explanation
Question 37:
Which of the following pairs is part of the electromagnetic spectrum? I. Radio waves II. sound waves III. Gamma rays IV. water waves
  • A I and II
  • B III and IV
  • C I and III
  • D II and IV
View Answer & Explanation
Question 38:
A substance has half of 3 min. After 6 min, the count rate was observed to be 400. What was its count rate at zero time?
  • A 1600
  • B 1200
  • C 200
  • D 2400
View Answer & Explanation