[ Post UTME Begins ]: View The List Of Schools That Have Released 2026 Post-UTME Forms.
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
  1. Home
  2. Classroom
  3. Physics
  4. WAEC 1990

Physics 1990 WAEC Past Questions

Clear Selections
Change Subject Post a Question Check Syllabus Study My Bookmarks Past Questions Videos Watch Video Lessons Download App

WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post UTME Past Questions Agent
21
Which of the following is not a suitable method for reducing loss of heat from a piece of hot iron?
  • A. Wrapping it in cotton wool
  • B. painting it black
  • C. Placing it in a vacuum
  • D. Placing it on rubber supports
  • E. Keeping it in a closed wooden box
View Answer & Discuss (3) WAEC 1990
22
When the direction of vibration of the particles of a medium is perpendicular to the direction of travel of a wave the wave transmitted is known as
  • A. sound wave
  • B. transverse wave
  • C. longitudinal wave
  • D. stationary wave
  • E. mechanical wave
View Answer & Discuss (1) WAEC 1990
23
A bat emits a sound wave at a speed of 1650.0ms-1 and receives the echoes 0.15s later. Calculate the distance of the bat from the reflector
  • A. 8.75m
  • B. 16.50m
  • C. 87.75m
  • D. 123.75m
  • E. 330.00m
View Answer & Discuss WAEC 1990
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post UTME Past Questions Agent
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
24
A tuning fork sounds louder when its stem is pressed against a table top than when held in air because
  • A. a larger mass of air is set vibrating by the table top
  • B. the whole table vibrates in resonance
  • C. the whole table has acquired a larger frequency
  • D. the fork and table have the same frequency
  • E. the amplitude of the vibrating fork is increased.
View Answer & Discuss (7) WAEC 1990
25
Which of the following is/are characteristics of sound? I Pitch II. Loudness III. Quality IV Noise
  • A. I only
  • B. II only
  • C. I and II only
  • D. l, II and III only
  • E. I, II, III and IV
View Answer & Discuss WAEC 1990
Start a Free Practice Test
 
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post UTME Past Questions Agent
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now