Refraction Problem- very easy but

[physicsbhelp]

[SOLVED] Refraction Problem- very easy but need help

. . . .

 

[Shooting Star]

Where is 180 deg coming from? What is the angle of refraction from liquid to air? What is the corresponding angle in the liquid?

 

[Shooting Star]

The eqn is right.

 

[Shooting Star]

so would the corresponding angle be

sin(theda)N1=sin(theda2)N2

so that means that theda2=180 so that part of the equation = 0. so sin(theda1)1.85?

Look at theta2, by which I presume you mean the angle of refraction into air. Does it look like 180 deg?

 

[Shooting Star]

Yes, "theda2" would be 90 deg.

 

[Shooting Star]

You're almost there. Check your thedas, which one goes where.

(Here again, sin theda1 > 1.)

 

[Shooting Star]

Yes and N2=1. (RI of air.)

 

[olgranpappy]

You will find all the help you need, and all the help you are going to get (I hope) in the following thread:

https://www.physicsforums.com/showthread.php?t=208040

 

[physicsbhelp]

THANK YOU SO MUCH FOR YOUR HELP SHOOTING STAR! you are the BEST!

 

[olgranpappy]

what am I? chopped liver?

 

[Shooting Star]

Dear physicsbhelp,

The way you are deleting your own posts I find hilarious, though I don't know why you are doing it. I must share this with others. Hope you don't mind.

 

[Doc Al]

. . . .

Stop playing these games (deleting your posts after getting help) or you will soon find yourself unable to get any help.

To the helpers: Please report this kind of activity.