Question

Determine the angle of refraction or reflection.

Shown from above in the figure below is one corner of a rectangular box filled with water. A laser beam starts 10 cm from side A of the container and enters the waterat position x. You can ignore the thin walls of the container.

(a) If x = 22 cm, does the laser beam refract back into the air through side B or reflect from side B back into the water?
1-refract back into air
2-reflect from side B back in the water

Determine the angle of refraction or reflection.
………….. °
(b) Repeat part a for x = 12 cm.
refract back into air
reflect from side B back in the water

Determine the angle of refraction or reflection.
………… °

(c) Find the minimum value of x for which the laser beam passes through side B and emerges into the air.
……… cm

Solutions

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