C. Hypothesis
The hypothesis is presented as an explanation of the observed results.
Answer:

Explanation:
From the question we are told that
The wavelength is 
The length of the of the plate is 
The radius of the wire is 
Generally the diameter of the wire which is the distance between the glass plates is mathematically represented as

=> 
=> 
Generally the condition for constructive interference is mathematically represented as

=> 
=> 
=> 
Answer:
200 K
Explanation:
0 °C = 273 K
-73°C = 273 K - 73 K = 200 K
The letter “j” is never found on the periodic table. As for numbers, there’s an infinite amount