Physics

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i38. tinypic .c o m /2hnxvki .gif

In the experiment, the angles between the laser and the optical bench, θbench, and between the laser and the normal to the mirror, θmirror, are measured. What is the relationship between θbench and the customary angles?

A. θbench=r
B. θbench=r–i
C. θbench=i–r
D. θbench=i+r
E. None of the above

I know that it's not B or D. Any help is appreciated!

  • Physics -

    That link split up by spaces is the figure (if you take the spaces out) that goes with the experiment.

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