[ 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
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
  1. Home
  2. Classroom
  3. Physics
  4. JAMB 1981

Physics 1981 JAMB Past Questions

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

WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
Post UTME Past Questions Agent
WAEC offline past questions - with all answers and explanations in one app - Download for free
31
a balloon inflated with helium gas at ground level is released. As it rises through a constant temperature atmosphere.
  • A. its pressuren reduces but volume remains constant
  • B. te product of pressure and volume remains constant
  • C. both pressure and volume increases
  • D. its pressure remains constant but the volume decreases
  • E. both pressure and volume remains constant
View Answer & Discuss (6) JAMB 1981
32

Change of state is accompanied by change of?

  • A. temperature
  • B. volume
  • C. heat content
  • D. temperature and volume
  • E. volume and heat content
View Answer & Discuss (9) JAMB 1981
33
The quantity (timbre) of sound depends on
  • A. amplitude
  • B. frequency
  • C. harmonics
  • D. velocity
  • E. wavelength
View Answer & Discuss (10) JAMB 1981
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post UTME Past Questions Agent
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
34

The mass of a proton is approximately equal to that of

  • A. an \(\alpha\)-particle
  • B. a \(\beta\)-particle
  • C. \(\gamma\)-ray
  • D. an electron
  • E. a neutron
View Answer & Discuss (10) JAMB 1981
35

An object placed on the principle axis of a convex lens of focal length 10m produces a real image of double magnification. The image distance from the lens is

  • A. 30cm
  • B. 25cm
  • C. 20cm
  • D. 15cm
  • E. 10cm
View Answer & Discuss (8) JAMB 1981
Start a Free Practice Test
 
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
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 - 127076
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts