Go Back   Physics Help Forum > High School and Pre-University Physics Help > Light and Optics

Light and Optics Light and Optics Physics Help Forum

Reply
 
LinkBack Thread Tools Display Modes
Old Jul 3rd 2010, 06:04 AM   #1
Junior Member
 
Join Date: Oct 2009
Posts: 5
Question Prism ...

A ray is incident at an angle of incident i on one surface of a prism of small angle A and emerges normally from the opposite surface.If the refractive index of the material prism is U ,the angle of incident i is nearly equal to :
?.

please give its working toooo....
anshulbshah is offline   Reply With Quote
Old Jul 6th 2010, 01:51 AM   #2
Senior Member
 
Join Date: Feb 2009
Location: Singapore
Posts: 206
remember that U=sini/sinr
__________________
To each his own.
arze is offline   Reply With Quote
Old Jul 6th 2010, 10:44 AM   #3
Senior Member
 
Join Date: Dec 2008
Location: Udupi, Karnataka, India
Posts: 292
Inside the prism, the ray is normal to the second surface. SO r2 = 0 and r1 = A. Since A is small, sin(r1) ~ A.

So u = sin(i)/sin(r1) = sin(i)/A

sin(i) = u*A.
sa-ri-ga-ma is offline   Reply With Quote
Reply

  Physics Help Forum > High School and Pre-University Physics Help > Light and Optics

Tags
prism



Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
prism volume ling233 Thermodynamics and Fluid Mechanics 1 Feb 25th 2016 12:24 AM
..prism anshulbshah Light and Optics 1 Dec 25th 2010 08:50 AM
prism abhishek arora Light and Optics 1 Jul 2nd 2009 04:18 AM
Triangular Prism and moment of inertia kala Advanced Mechanics 0 Dec 2nd 2008 05:46 PM


Facebook Twitter Google+ RSS Feed