The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

This discussion is now closed.

Check out other Related discussions

help!!!, GCSE physics 2morrow, Red Shift?

could someone please explain the priciple of red shift?,

i know that it is something to do with light going to the red side of the spectrum as a star moves further away from us? but i don't understand why and why that is so important???

thanx
Reply 1
Avatar for Magician
Magician
15
icy_shadow2006
could someone please explain the priciple of red shift?,

i know that it is something to do with light going to the red side of the spectrum as a star moves further away from us? but i don't understand why and why that is so important???

thanx


you can calculate how far away the object is moving away relative to a source.


by the way, wrong forum.
Reply 2
Avatar for Steph!
Steph!
13
basically, the frequency of the waves shift towards the lower end of the spectrum if they are further away, I don't think you need to know why they do that, they just do! (anyways we didn't last year!)

The more distant galaxies have greater red shifts than the nearer ones so must be moving faster. This suggests that the universe is expanding which supports the big bang theory.
Reply 3
Avatar for icy_shadow2006
icy_shadow2006
OP
why
Reply 4
Avatar for Steph!
Steph!
13
why what?
Reply 5
Avatar for icy_shadow2006
icy_shadow2006
OP
thanx
Reply 6
Avatar for Steph!
Steph!
13
er.... my pleasure....

Related discussions

Latest

Trending

Trending

Articles for you