Author Question: For two beams of light traveling different distances in reaching a point, and to form maximum ... (Read 76 times)

tsand2 · **on:** Jul 29, 2018

For two beams of light traveling different distances in reaching a point, and to form maximum constructive interference at that point, the beams must travel paths that differ by a whole number of wavelengths.

Indicate whether the statement is true or false

Question 2

A capacitor consists of a set of two parallel plates of area A separated by a distance d. The capacitor plates carry charges +Q and -Q. If the separation between the plates is doubled, the electrical energy stored in the capacitor will

A)

double.
B)

quadruple.
C)

be cut in half.
D)

be cut in fourth.
E)

not change.