Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. JAMB
  4. /
  5. Physics
  6. /
  7. 2009
  8. /
  9. Q0
Question 0

Thermionic emission is the process whereby

  • A.β - rays are produced
  • B.holes are produced
  • C.x - rays are produced
  • D.electrons leave a hot element
  • E.
Objective

Question details

Exam body
JAMB
Subject
Physics
Year
2009
Question no.
#0
Type
Objective
Previous · Q0A piece of radioactive material contains 10 20 atoms. If the half life of the… Next · Q0 Which of the following can conduct electricity owing to the presence of free…

More from this paper

  • Q0I. Diameter of a small ball bearing. II. Thickness of a pieces of paper. III…
  • Q0What is the acceleration between two points on a velocity time graph which has…
  • Q0A bullet fired vertically from upward from a gun held 2.0 m above the ground…
  • Q0I. The motion of the tyres of a moving car. II. The motion of a loaded test tube…
  • Q0If a cage containing a truck of coal weighing 750 kg is raised to a height of 90…
  • Q0An object of mass 80 kg is pulled on a horizontal rough ground by a force of 500…
See all Physics 2009 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