Post Utme University of Ibadan Physics Past Questions and Answers

Question 1:

An element and its isotopes differ only in the number of ____________

A. Electrons
B. Neutrons
C. Protons
D. Irons

Question 2:

Complete the following sentence: When electrons from a heated filament accelerate through vacuum toward a positive plate,

A. Only an electric field will be produced.
B. Only a magnetic field will be produced.
C. Electromagnetic waves will be produced.
D. Longitudinal waves will be produced.

Question 3:

Radioactive elements are ____________

A. Chemically reactive elements
B. Noble elements
C. Rare earth elements
D. Elements that spontaneously emit radiation

Question 4:

The following radiations are electrically neutral except

A. A-rays
B. \(Y\)-rays
C. X-rays
D. Neutrons

Question 5:

Upon which one of the following parameters does the energy of a photon depend?

A. Mass
B. Polarization
C. Amplitude
D. Frequency