Posted by Jordan on Friday, July 12, 2013 at 11:48am.
Which of the following is correct for the reflected ray if a light ray strikes a plane mirror at an angle of 50° from the normal?
a. 40° from the surface of the mirror
b. 40° from the normal
c. 50° from the surface of the mirror
d. 90° from the normal
I have been stuck on this question for a while and I think it is because I am not sure I truly understand the question so I am not entirely convinced that I know the correct answer. I think the answer is either 40 degrees from the normal or 90 degrees from the normal but I do not know for sure. If you could help me answer this question and explain it to me it would be greatly appreciated.

Physics  Steve, Friday, July 12, 2013 at 12:07pm
The angle of reflection is the same as the angle of incidence.
Since incidence is 50° from the normal, so is the reflection.
Since the normal is 90° from the surface,
50° from normal = 40° from surface
So, the answer is (a)
Answer This Question
Related Questions
 physics  1. A light ray strikes a mirror at an angle of 42° from the surface of...
 science/math  1. A light ray strikes a mirror at an angle of 42° from the ...
 physics  Which of the following is correct for the reflected ray if a light ray...
 physics  please check these for me: What is the wavelength of microwaves of 3.0...
 Physics  Two plane mirrors are positioned at right angles to one another. A ray...
 Calculus III  Consider a room ten units long in the x, y, and z directions. ...
 Physics  1) The speed of light in a certain liquid is 3/5 the speed in a vacuum...
 Physics  1) The speed of light in a certain liquid is 3/5 the speed in a vacuum...
 Physics  A ray of light hits the surface of a mirror at an incident angle of 10...
 physics/light reflection  A light of ray is incident at an angle of 58degrees ...
More Related Questions