Answer:
Volume will be 15 mL. Solution:- If we look at the given information then it is Boyle's law as the temperature is constant and the volume changes inversely as the pressure changes. So, the volume of the air bubble at the surface will be 15 mL.
The energy of a single photon is given by:

where
E is the energy
h is the Planck constant
f is the frequency of the light
The light in our problem has a frequency

, so the energy of each photon of that light is:
Data’s conclusion is considered
valid if the experiment validity is being controlled. With this conclusion
validity, our data gathered and presented are considered a reasonable one.
It is the most important types of validity. As what is said, by having conclusion
validity, your data will be undoubtedly least considered since it is labelled
as statistical and well-studied. Once you already mention the word
statistics meaning it is studied and surveyed with the most of the human
race and includes relationship in your data.
No, it doesn’t seem fair since it’s a lot harder for the other team to hit it back.