Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
Describe Electromagnetic wave? Travel at the speed of light what does that mean? |
The electromagnetic wave have electrics wave and a magnetic wave but they travel perpendicular to each other. If electromagnetic travel at the same speed of light hence light must be a electromagnetic wave. |
|
|
In electromagnetic field which one is the smaller force? |
Then magnetic filed is the weaker one |
|
|
Why if a electromagnetic wave have high frequency it must have a small wavelength? |
Because wave speed is equal to c=wavelength x frequency and c is a constant. |
|
|
Describe the Boltzmann constant? |
First you need to know PV/T=constant but that constant depend on the amount of atom time the Boltzmann constant |
|
|
What is a black body? |
A black body is a substance which absorb energy and don't reflect it. |
