WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
  1. Home
  2. Classroom
  3. Physics
  4. Models of Atoms and Nuclear Physics

Physics Past Questions

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

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
WAEC offline past questions - with all answers and explanations in one app - Download for free
21

The speed of fast-moving neutrons in a nuclear reactor can be reduced by using?

  • A. graphite rods
  • B. concrete shield
  • C. iron rods
  • D. boron rods
View Answer & Discuss WAEC 2022
22

Arrange the following radiations in order of increasing ionization of air.

I. Alpha

Il. Gamma

IIl. Beta

  • A. I < III < II
  • B. II < I < III
  • C. II < III < I
  • D. I < II
View Answer & Discuss (7) WAEC 2022
23

Gamma rays are produced when?

  • A. high velocity electrons are abruptly stopped in metals
  • B. energy changes occur within the nuclei of atoms
  • C. energy changes occur within the electronic structure of atoms
  • D. electrons are deflected in very strong magnetic fields
View Answer & Discuss (1) WAEC 2022
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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
24

An isotope has an initial activity of 120 Bq. 6 days later its activity is 15 Bq. The half-life is? 

  • A. 3 days
  • B. 2 days
  • C. 1 day
  • D. 4 days
View Answer & Discuss (11) JAMB 2022
Start a Free Practice Test
 
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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
WAEC offline past questions - with all answers and explanations in one app - Download for free