\(\Rightarrow \frac{V_{S}}{V_{P}}=\frac{\text {no. of turns in secondary coil }\left(N_{s}\right)}{\text { no. of turns in primary coil }\left(N_{p}\right)}\)
Clearly, voltage in secondary coil depends on voltage in primary coil and number of turns in primary and secondary coil. It is independent of frequency of the source.