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Physics 2021 WAEC Past Questions

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41

A stone is thrown horizontally with initial velocity 15m/s from a tower 20 m high. How long does it take to reach the ground? [g= 10m/s\(^2\)

 

  • A. 2s 
  • B. 4s     
  • C. 5s   
  • D. 1s
View Answer & Discuss (9) WAEC 2021
42

Which of the following statements is not a characteristic of a plane progressive wave?     

  • A. Energy travels out through the medium      
  • B. Neighboring points along the profile possess different amplitudes             
  • C.  Neighboring points along the profile possess the same amplitude           
  • D. Neighboring particles vibrate with different phase
View Answer & Discuss (1) WAEC 2021
43

The electrons in a cathode-ray tube are produced by?          

  • A. heating a metal filament.               
  • B.  ionization of the air.             
  • C.   applying a magnetic field to the y-plates.         
  • C.  applying an electric field to the x-plates.
View Answer & Discuss (2) WAEC 2021
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44

Which of the following statements about distance and displacement is not correct?     

  • A.  Displacement is a vector quantity.   
  • B.  Distance has dimension    
  • C.  Displacement is measured in meters.
  • D.  Distance is a vector quantity.
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45

A note produced by an instrument is distinguished from a similar note produced by another instrument by the?     

  • A.  intensity,       
  • B. pitch.     
  • C. overtones.   
  • D. loudness
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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts