Condensator Potential and Capacitance Relationship

[kasse]

Homework Statement

Doubling the potential over a condensator, results in...

a) doubling the capacitance
b) halving the capacitance
c) doubling the charge

The Attempt at a Solution

Since C = Q/V, it's got to be either b) or c). But which?

 

[Borek]

Hint: capacitance is defined ONLY by the capacitor geometry and dieletric constant of spacer between plates.

And this is hardly advanced physics, I would classify it as introductory.