I would say B but I’m not 100%
The human eye is not capable of seeing radiation wavelengths outside the visible Spectrum, i hope this answers your question :)
Answer:
Explanation:
From the question we are told that
Distance b/w plate 
P_1 Potential at 7.35 
Generally the equation for electric field at a distance is mathematically given as
Answer:
the angular speed is around 45
Explanation: