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Question 1 : We take a rectangular glass slab with a thickness of 10 mm. There are perfectly aligned rulers on the two long surfaces, ruler A and ruler B. The glass has an index of refraction of 1,5 with no dispersion. We aim a laser at the zero mark of ruler A at an angle of 45° to a normal line that is perpendicular to ruler A. It refracts through the glass and exits from the other side, through ruler B. At what angle (in degrees) from a normal line perpendicular to ruler B does the laser beam exit? Answer to one digit after the decimal point

**Question 2** : We take a rectangular glass slab
with a thickness of 15 mm. There are perfectly aligned rulers on
the two long surfaces, ruler A and ruler B. The glass has an index
of refraction of 1,4 with no dispersion. We aim a laser at the zero
mark of ruler A at an angle of 40° to a normal line that is
perpendicular to ruler A. It refracts through the glass and exit
from the other side, through ruler B. At what distance **(in
mm)** from the zero mark of ruler B does the laser beam
exit? **Answer to 2 digits after the decimal
point**

**Question 3** : We take a rectangular glass slab
with a thickness of 10 mm. There are perfectly aligned rulers on
the two long surfaces, ruler A and ruler B. The glass has an index
of refraction of 1.3 with no dispersion. We aim a laser at the zero
mark of ruler A at an angle such that it exits from the other
surface at a distance of 2 mm from the zero mark of ruler B. At
what angle of incidence **(in degrees)** to a normal
line that is perpendicular to ruler A did the laser beam enter?
**Answer to one digit after the decimal point**

Answer #1

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