I think the correct answer would be D. The tap water in the experiment is one the three test conditions of the independent variable, the type of water. The independent variable in a experiment is the one being manipulated or the one being changed. In this case, it is the type of water.
Answer:1.55 times
Explanation:
Given
First wavelength
Second wavelength
According wien's diplacement law
where
T=Temperature
Let be the temperatures corresponding to respectively.
Thus object with is 1.55 times hotter than object with wavelength
<span>
The taut guitar string haspotencial energy which we can see in action.</span> <span>· so option a is correct.</span>