The answer to this question would be: true
In transdermal route, the drug is absorbed through the skin. This can be done by using a transdermal patch that will adhere to the skin and release its active compound slowly. the compound will diffuse until it going to the dermis and will be distributed to the body.
Selectivity permeable membrane and a scaffold for biochemical activity
Given that,
The speed of a wave, v = 200 m/s
Wavelength, 
We need to find the frequency of this wave. The relation between wavelength, frequency and the speed is given by :

So, the frequency of this wave is 100 Hz.