Calculating Angle Deflection in Laser-Mirror Interactions

AI Thread Summary
The discussion centers on calculating the angle φ in a laser-mirror interaction where a horizontal laser beam is deflected by θ=59°. Participants emphasize the importance of drawing a diagram to visualize the angles involved. There is confusion regarding the placement of the angles in the diagram, particularly where to mark θ and φ. Clarification is sought on the angles formed at the point of reflection. Understanding the geometry of the situation is crucial for solving the problem accurately.
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Mirror and laser beam angle...please help!

Homework Statement


The mirror deflects a horizontal laser beam by θ=59°. What is the angle φ?


Homework Equations





The Attempt at a Solution


I don't understand this. How am I supposed to figure out φ?
 
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I assume φ is the angle of incidence.

Have you drawn a diagram?

What have you drawn … ? :smile:
 
I have the beam being reflected with lines drawn the upper left and lower left
 
You haven't told us where you've put the 59º in, nor where you've marked φ.

So … where are they?

Anyway, how much are the upper left and lower left angles? :smile:
 

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