The Student Room Group
Reply 1
Yeah, I think Luminosity is proportional to mass ^ 3.5 or something...

Try http://www-astronomy.mps.ohio-state.edu/~dhw/Intro/lec4.html (section 4.5)
Reply 2
ok thank you, although I wonder if we actually need to know this for AS edexcel physics...
Reply 3
Yes you do since they asked for it in one of the past papers.
Reply 4
http://www.edexcel.org.uk/VirtualContent/67499.pdf

Look on page 26. The qs says write an equation....

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