Sunday
April 26, 2015

Homework Help: physics

Posted by alessandra on Wednesday, December 5, 2012 at 12:56pm.

3. a beam of light enters water from air.(a) if its angle of incidence is 70,what is the angle of refraction ?(b) at what angle must it enter the water if its angle of refraction is to be 20?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Members