Post Utme University of Nigeria Physics Past Questions and Answers

Question 16:

Which of the following will be applied when a metal \(Y\) is used to electroplate another metal \(X\) in electrolysis?

A. \(Y\) is the anode and very high current is used
B. \(X\) is the anode and \(Y\) is the cathode
C. \(Y\) is the cathode and \(X\) is the anode
D. \(X\) is the anode and very high current is used

Question 17:

If a tube of small radius opened at both ends is placed in a liquid, the liquid will ____________

A. Fall below the liquid level if the liquid does not wet the glass
B. Rise above the liquid level if the liquid does not wet the glass
C. Remain at the same level irrespective of whether the liquid wets the glass or not
D. Fall below the liquid level if the liquid wets the glass