The Total Internal Reflection Rau Flashcards
1
Q
What is total internal reflection used in
A
Optical fibres
2
Q
How are optical fibres useful
A
To send information quickly over long distances and is used in endoscopes
3
Q
What wave does a satellite use
A
Microwaves
4
Q
What does a satellite have
A
Faster wave speed
Can communicate anywhere
5
Q
What does an optical fibre have
A
Uses slower wavespeed
Shorter distance = small delay
Needs a connection to the finre
6
Q
What do endoscopes do
A
Use the total internal reflection to investigate specific areas of the body
7
Q
What is an advantage of endoscopes
A
Less harmful as no ionising radiation is used
8
Q
What do CT scans do
A
They investigate the body and use X rays to generate more images of the body and are in 3D
9
Q
What’s a disadvantage of CT scans
A
Pose a higher risk due to the x rays
