Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. WAEC
  4. /
  5. Physics
  6. /
  7. 1988
  8. /
  9. Q31
Question 31

A boy standing a distance from the foot of a tall cliff claps his hands and hears an echo 0.5s later. If the speed of sound is 340ms1, how far is he from the cliff?

  • A.17m
  • B.34m
  • C.85m
  • D.170m
  • E.680m
Objective

Question details

Exam body
WAEC
Subject
Physics
Year
1988
Question no.
#31
Type
Objective
Previous · Q30Which of the following statement s is/are not correct about a standing wave? I… Next · Q32 A sounding tuning fork is brought near the end of a pipe containing an air…

More from this paper

  • Q27The ability of the eye to focus objects at different distances is called
  • Q28The change of the direction of a wave-front because of a change in the velocity…
  • Q29A source of sounds produces waves in air of wavelength1.65m. If the speed of…
  • Q33If the leaves a positively charged electroscope collapse completely as an object…
  • Q34A transformer with 55500 turns in its primary is used between a 240V a. c supply…
  • Q35Local action is normally prevented from taking place in a simple electric cell…
See all Physics 1988 questions
Teacha

Africa's learning & exam readiness platform. Built for students, tutors, and schools.

Platform

  • Courses
  • Mock Exams
  • Past Questions

For You

  • I'm a Tutor
  • I'm a School
  • Pricing

© 2025 Teacha. Built for African learners, tutors, and schools. Teacha is not affiliated with WAEC, NECO, or JAMB. All past questions are sourced from publicly available materials.

Privacy PolicyTerms of UseCookie Policy