Post Utme Physics Past Questions and Answers

Question 606:

The emitted energy from a radiation is what form?

A. Continuous energy
B. Discrete packets of energy
C. Scattered form of energy
D. None of the above

Question 607:

A silicon material is doped with an element of a certain group and an n-type semiconductor is formed. The most likely group of the element is ____________

A. I
B. II
C. III
D. V

Question 608:

Which of these type of galvanometer converts electrical energy to sound?

A. Avometer
B. Mirror galvanometer
C. Moving coil loud speaker
D. Moving coil galvanometer

Question 609:

The equations in the options represents Einstein photoelectric equation EXCEPT

A. \(E_{\max }=h f-W o\)
B. \(h f=E_{\max }+\) Wo
C. \(1 / 2 m v_{m}^{2}=h f-W o\)
D. \(\mathrm{E}_{\max }=\mathrm{hf}+\mathrm{Wo}\)

Question 610:

Which of the following best describes eddy current?

A. The induced emf in a circuit is directly proportional to the rate of change of magnetic flux linking the coil
B. The induced current flows in such a direction to oppose the change producing it.
C. An electric current induced within the body of a conductor when that conductor either moves through a non-uniform magnetic field or is in a region where there is a change in magnetic flux
D. The induced emf in a circuit as a result of the change in the current through the circuit