Imagine you are standing on one side of a wall and there is a light source on the other side. which best describes why the light would become brighter as you approached the open door in the wall?
a) absorption
b) diffraction
c) reflection
d) refraction
The light would become brighter as you approached the open door behind the wall because of refraction. The wall blocks the light source that's why it's dimmer at a distance. When the person approaches the light source, the visible light becomes brighter as the distance decreases.
d: the voltage of the secondary coil is less than that of the primary coil.
im not suree sorry if wrong
B, diffraction
I might be wrong but I just took a test with this question and the majority of people put B.
Engineers have contribute to society in many ways like making the technology we use today or any type of power energy material