Remains unchanged (as it's a solid)
The flow of Direct current (DC) is constant and flows in one direction. Most digital electronics make use of DC. Alternating current (AC) periodically flows in reverse and is mostly used to deliver power to houses, buildings and the like. With that alone, you can already rule out A, C and D.
The answer would then be B. constant, periodically reversing.
These elements are synthetic elements in that they do not occur naturally and only as a result of being made in a scientific laboratory. Elements are given the Uu(x) name as a placeholder until IUPAC (International Union of Pure and Applied Chemistry) approves an actual name for the element. This is under a process called "systematic element naming" (feel free to give it a google). The IUPAC grants the discoverers of the new element the right to suggest the name for that new element, so you may find that those weird Uu(x) elements have an actual name soon!!
Answer:
I hope this helps
Explanation:
i had to submit just to get the answer,Have a great day!!!
Explanation:
The relationship between the wavelength and the potential difference V is given by :
Putting the values of known parameters,
(a) 
(b) 
Hence, this is the required solution.
