Concept explainers
The reason for the situation to be impossible.
Answer to Problem 66AP
The given situation is impossible as the total number of reflection possible is
Explanation of Solution
The following figure shows the entire path of the laser beam traveled through the slab.
Figure-(1)
Write the expression for critical angle.
Here,
Write the expression for the index of refraction on the first face of the prism.
Here,
Rewrite the above equation for
Consider figure (1).
The angle of incidence is,
Calculate the length
The laser beam is hitting at the middle of the slab. Therefore the length
Half reflection is occurred at length
Here,
Conclusion:
Substitute
Substitute
Substitute
Angle
Substitute
Substitute
The total number of reflection possible is
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Chapter 35 Solutions
Physics For Scientists And Engineers With Modern Physics, 9th Edition, The Ohio State University
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