IGCSE PHYSICS HELP - M/J 2004 paper 6 Q 1 b)

[QueenBee101]

It is not possible to put the rule inside the beaker to measure the gap between the
electrodes. Explain how you would overcome this problem.

HOW TO ENSURE THE GAP BETWEEN THE ELECTRODES REMAINS THE SAME.

 

[Proud otaku]

Hmm, I'm an idiot so don't take my reply seriously.
But what if we place the ruler on the opening of beaker and see it above vertically?

 

[princess sofia]

by first measuring the gap , and thn place it in the the beaker makng sure that the are nt moved from their position ( although it is quite impossible)