× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
o
5
4
m
4
b
4
x
4
a
4
l
4
t
4
S
4
m
3
s
3
New Topic  
as11916 as11916
wrote...
Posts: 1
Rep: 0 0
7 years ago
A thin beam of light enters a thick plastic sheet from air at an angle of 32.0° with the normal and continues in the sheet at an angle of 23.0° with the normal. What is the index of refraction of the plastic?
Read 3168 times
1 Reply

Related Topics

Replies
wrote...
7 years ago
Hi, this has been asked before.

Anyway,

apply snells law as na sin A -= nb sin B

so nb = 1 * sin 32/sin 23

nb = 1.356
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  957 People Browsing
Related Images
  
 1105
  
 254
  
 214
Your Opinion
Which is the best fuel for late night cramming?
Votes: 144