Search SchoolNGR

Tuesday, 18 August 2026
Register . Login

Physics Past Questions and Answers

Topic: Waves

Jamb Physics Questions - Waves

Question 51:
What is the frequency of the sound made by a siren having a disc with 32 holes and making 25 revolution per seconds?
  • A 80Hz
  • B 600Hz
  • C 800Hz
  • D 1600Hz
View Answer & Explanation
Question 52:
The relationship between L and the wavelength I of the stationary wave is
  • A 2L = \(\lambda\)
  • B L = \(\lambda\)
  • C L = \(\frac {\lambda}{3}\)
  • D 4L = 3 \(\lambda\)
View Answer & Explanation
Question 53:
Determine the distance between the consecutive antinodes XX if the wavelength is 60cm
  • A 15cm
  • B 30cm
  • C 60cm
  • D 120cm
View Answer & Explanation
Question 54:
Which of the following waves can propagate through a vacuum?
  • A High velocity sound waves
  • B Ultrasonic waves
  • C Acoustic waves
  • D Infra-red waves
View Answer & Explanation
Question 55:
Radio waves emitted from an antenna are picked up by a radar after reflection from an aircraft in 4 x 10-3S. How far is the aircraft from the antenna? [c = 3 x 108ms-1 ]
  • A 6.0 x 10<sup style='font-size: smaller;'>2</sup>ms<sup style='font-size: smaller;'>-1</sup>
  • B 1.2 x 10<sup style='font-size: smaller;'>3</sup>km
  • C 3.0 x 10<sup style='font-size: smaller;'>3</sup>km
  • D 6.0 x 10 <sup style='font-size: smaller;'>5</sup>km
View Answer & Explanation