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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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16

Which of the following statements about a neutral atom is correct? The

  • A. core is composed of electrons and protons
  • B. number of electrons is equal to that of neutron
  • C. number of neutrons is equal to that of protons
  • D. number of protons is equal to that of electrons.
View Answer & Discuss (5) WAEC 2019
17

A certain radioactive source emits radiation that was found to be deflected by both magnetic and electric fields. The radiation is?

  • A. beta rays
  • B. gamma rays
  • C. x-rays
  • D. ultra-violet rays
View Answer & Discuss (3) JAMB 2021
18

The process of energy production in the sun is?

  • A. nuclear fission
  • B. nuclear fusion
  • C. electron collision
  • D. radioactive decay
View Answer & Discuss (3) JAMB 2009
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
19

An atom that emits an a-particle?

 

  • A.  may become a different element.     
  • B.   becomes a different isotope of the element.     
  • C. daughter with increased mass. 
  • D.   becomes a daughter of a different element always.
View Answer & Discuss WAEC 2021
20

Which of the following scientist suggested that moving particles exhibit wave properties?

 

  • A. Isaac Newton   
  • B. Ernest Rutherford     
  • C. Louis de Broglie   
  • D. J.J. Thompson
View Answer & Discuss (2) WAEC 2021
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709