Answer:
The radius is
Explanation:
From the question we are told that
The distance beneath the liquid is
The refractive index of the liquid is
Now the critical value is mathematically represented as
substituting values
Using SOHCAHTOA rule we have that
=>
substituting values
Answer:
A) and B) are correct.
Explanation:
Let's take a look at the attached picture. Now
The total voltage across both capacitors is the same as the sum of the voltage from each device, that statement is true for any electrical device connected in series. So a) is TRUE
The equivalent capacitance is going to be:
And that value can be mathematically proven that is always less than any of the values of each capacitor. So b is TRUE
And through both capacitors flow the same current, but the amount of charge depends on the value of the capacitors, so only could be the same if the capacitors are the same value. Otherwise, don't. C) not always, so FALSE
