Qualification > Reference Material
Physics Formula Book
**!!superexcited!!!**:
help october 2008 http://www.freeexampapers.us/IGCSE/Physics/CIE/2008%20Nov/0625_w08_qp_03.pdf
first variant question 6b, 4a
plz asap!!
Trinion:
=O
Can I have a copy please? =)
Really need it =P
Eric843@Hotmail.com
Thanks =)
asdf123:
send to me please!!!!
kris.arj90@yahoo.com
dlehddud:
--- Quote from: priyu22 on November 07, 2009, 01:48:01 am ---help october 2008 http://www.freeexampapers.us/IGCSE/Physics/CIE/2008%20Nov/0625_w08_qp_03.pdf
first variant question 6b, 4a
plz asap!!
--- End quote ---
6b) we're told refractive index is 1.49, so n=1.49
using sin r/sin i =n ( as we are moving from dense medium to less dense medium)
we get
sin r/ sin 30=1.49
rearranging we get
sin30 * 1.49= sin r
which is 0.745=sin r
rearranging, we get r=sin^-1 0.745
which is 48.2 degress (3sf)
4a)question is a simple question testing your knowledge of particle motion in fluids (Brownian motion)
any few striaght lines that are joined will do
hope it helped :D :D
chopraanmol:
send t me tooo at chopraanmol@gmail.com
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