## anonymous one year ago A ray of light goes from air into the substances shown in the table at an angle of 30 degrees. Which substance will bend the light the most? water , flint glass, diamond, quartz ?

1. anonymous

|dw:1434867528128:dw|

2. rvc

denser to rarer medium the ray with be away from the normal

3. Michele_Laino

here we have to apply the law of Snell: $\large {n_1}\sin {\theta _1} = {n_2}\sin {\theta _2}$

4. anonymous

ok!

5. rvc

yep

6. Michele_Laino

|dw:1434867544163:dw|

7. Michele_Laino

now we can suppose that: n_1=1 and \theta_1=30

8. anonymous

ok! what happens next?

9. Michele_Laino

so we have: $\large \sin {\theta _2} = \frac{{{n_1}\sin \theta }}{{{n_2}}} = \frac{{0.5}}{{{n_2}}}$

10. rvc

|dw:1434867597917:dw|

11. anonymous

ok! and what is n2? :/

12. rvc

away from the main question lol

13. Michele_Laino

next: for which values of n_2, we have the smallest value of \sin(\theta_2)?

14. anonymous

what do you mean @rvc ? and ok! @Michele_Laino would that mean that diamond is the one that will bend teh light the most?

15. Michele_Laino

I think that we have this situation: |dw:1434867781827:dw|

16. rvc

i m away from the question of i heartfood

17. rvc

lol my ans is away

18. anonymous

i still do not understand what you are saying @rvc lol and ohh so it should be water is the solution? @Michele_Laino ?

19. Michele_Laino

that's right! @iheartfood it is the diamond

20. anonymous

ohh okie yay!! haha sorry, got a bit confused by the multiple responses going aroudn lol :P thanks @Michele_Laino :)

21. Michele_Laino

:)