Plane Reflection Questions?

Question

1. Consider the figure shown below. Which location indicates where the image of the object will be for the observer?

http://i33.photobucket.com/albums/d77/alexsierra82/QUIZ1037PIC1.jpg

2. The figure below shows a light ray entering a material of unknown index of refraction from air (n=1.00029). If the incident angle is 27.0 degrees and the refracted angle is 18.0 degrees, what is the index of refraction for the second material? http://i33.photobucket.com/albums/d77/alexsierra82/QUIZ1037PIC2.jpg

3. The figure below shows a light ray passing from one material, to another, then to another. Considering the relative angles of the light rays in the figure, which of the following best describes the relative sizes of the indices of refraction?

http://i33.photobucket.com/albums/d77/alexsierra82/QUIZ1037PIC3.jpg

Answer 1

1. point B

2. 1.000292(sin27) = n(sin((18))

0.454123064965471 = 0.309016994374948n

n = 1.469573

3. Two's index of refractions is larger than ones, three's index is smaller than two's.

bye for now.