Friday
August 29, 2014

Homework Help: physics

Posted by crystal on Saturday, September 10, 2011 at 10:29pm.

a room which is h = 9.0 feet tall and r = 12.0 feet wide. Attached to the ceiling is a piece of glass (with unknown index of refraction) which is 2.5 feet thick. A laser pointer in the bottom left corner is aimed so that the ray which reflects off the glass hits the room's bottom right corner.

(a) What is the ray's angle of incidence at the glass?

b) If the ray which refracts into the glass hits the ceiling 7.7 feet away from the left wall, what is the refracted ray's angle of refraction at the glass?

(c) What is the glass's index of refraction?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - a room which is h = 9.0 feet tall and r = 12.0 feet wide. Attached to...
college physics - I know you need to use geometry but i don't know how a room ...
physics - The figure below shows a room which is h = 8.5 feet tall and r = 14.5 ...
math - A school is soundproofing a band room with insulating tiles. The room is ...
Physics - One application of the index of refraction is analysis of crime scenes...
Geometry - A gallon of paint costs $20 and covers 465 square feet. Three coats ...
math - Erika is painting her living room. The room measures 10.5 feet by 11.5 ...
Geometry - the walls, floor, and ceiling of a room form a rectangular solid. The...
physics - 7. A drop of oil is placed on a glass block. The glass has an index of...
geometry - a room is 18 feet long,15 feet wide and has an 8 foot ceiling.a cord ...

Search
Members