P2.2 Infrared radiation Flashcards
1
Q
What are electromagnetic waves?
A
Are electric and magnetic waves that travel through space
2
Q
How can you make an object emit more infrared radiation in a given time?
A
Raise the temperature of the object
3
Q
What does a body at constant temperature do?
A
Emits infrared radiation at the same rate as it absorbs it
4
Q
What is a perfect black body?
A
An object that absorbs all radiation
It doesn’t reflect any radiation and it doesn’t transmit any radiation
5
Q
What is black body radiation?
A
The radiation emitted by a perfect black body
6
Q
What does an object at constant temperature emit?
A
Radiation across a continuous range of wavelengths
