The time period ($T$) of a wave is the reciprocal of its frequency ($f$). The formula for the time period is:

$T = \frac{1}{f}$

Given: $f = 10^5 \text{ Hz}$

Substitute the value of $f$ into the formula:

$T = \frac{1}{10^5} \text{ seconds}$

$T = 10^{-5} \text{ seconds}$

So, the time period of the wave is $10^{-5}$ seconds.

Would you like a deeper explanation or have any further questions?

Here are some related questions to deepen your understanding:

1. How is the frequency of a wave affected by its wavelength?
2. What happens to the time period if the frequency is doubled?
3. How would you convert the time period to milliseconds?
4. What is the physical interpretation of time period in a wave?
5. How can we measure the frequency and time period in a real-world experiment?

Tip: Remember, frequency and time period are inversely related. As one increases, the other decreases.