Over a million students use our free study notes to help them with their homework
The phenomenon this question relates to is the photoelectric effect, and it can only be explained using Einstein’s photon model of light.Electromagnetic waves are emitted in discret...
Stimulated emission occurs under the specific circumstances of a population inversion, that is, when there are more electrons in a higher energy level than one below it. There will be a certain energy ...
We start with the following two observations about an object undergoing constant acceleration. First, its acceleration is equal to the change in its velocity over time, hence,
a=(v-u)/t.<...
A potential divider is essentially a series circuit. The characteristics of a series circuit is such that voltage from the source (a battery for example) gets split across the resistors according to t...
In Nuclear Fission, neutrons collide with radioactive atoms (eg Uranium-235) in order to split the atom into two smaller atoms and releasing energy. The more n...
←
147
148
149
150
151
→
Internet Safety
Payment Security
Cyber
Essentials