PhysicsLAB: Refraction and Critical Angles

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Refraction and Critical Angles

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Refer to the following information for the next question.

Determine the unknown angle in the diagram.

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Explain why ray #1 refracts twice, while ray #2 does not refract at either surface.

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Which of the following diagrams represents a possible result of the above incident ray?

1 and 22 only2 and 33 only3 and 44 onlynone of the above

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A ray of light normal to the short face of a 37-53-90 prism is shown. A drop of liquid is placed on the hypotenuse of the prism. The index of refraction of the prism is 1.52.

If the beam is internally reflected, what is the index of the liquid?

1.901.091.212.53the correct index is not shown as a choice

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Referencing the following image, the angle labeled q₃is the critical angle of the medium whose index of refraction is 1.25 .

How will the reflected ray shown above behave when it strikes the upcoming vertical interface?

it escapes out of the medium at an angle of 41.4º
it reflects back into the medium at an angle of 53.1º
it reflects back into the medium at an angle of 36.9º
it escapes out of the medium at an angle of 48.6º

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The fisherman shown in the picture above will see the fish:

a) closer to the boat then it actually is
b) further from the boat then it actually is
c) closer to the surface then it actually is
d) further below the surface then it actually is

Which combination is correct?

a onlyb onlyc onlyd onlya and ca and db and cb and d

Refer to the following information for the next question.

Which of the following statements is NOT true regarding the dispersion of a ray of white, polychromatic, light through a glass prism surrounded by air?

Dispersion, or the breaking up of polychromatic light into its component colors, results from the fact that every wavelength (or frequency) of light has its own unique

angle as it leaves the air to enter the glass
index of refraction while in the glass
speed of light while traveling through the glass
refracted angle when it leaves the glass to enter the air

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Resource Lesson:	RL - A Derivation of Snell's Law RL - Converging Lens Examples RL - Converging Lenses RL - Demonstration: Infinite Images RL - Demonstration: Real Images RL - Demonstration: Virtual Images RL - Dispersion RL - Diverging Lenses RL - Double Lens Systems RL - Lensmaker Equation RL - Mirror Equation RL - Properties of Plane Mirrors RL - Refraction of Light RL - Refraction Phenomena RL - Snell's Law RL - Snell's Law: Derivation RL - Spherical Mirrors RL - Thin Lens Equation
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Worksheet:	APP - Enlightened APP - Reflections APP - The Librarian APP - The Starlet CP - Lenses CP - Plane Mirror Reflections CP - Refraction of Light CP - Snell's Law CP - Snell's Law NT - Image Distances NT - Laser Fishing NT - Mirror Height NT - Mirror Length NT - Reflection NT - Underwater Vision WS - An Extension of Snell's Law WS - Basic Principles of Refraction WS - Converging Lens Vocabulary WS - Diverging Lens Vocabulary WS - Lensmaker Equation WS - Plane Mirror Reflections WS - Refraction Phenomena WS - Refraction Through a Circular Disk WS - Refraction Through a Glass Plate WS - Refraction Through a Triangle WS - Snell's Law Calculations WS - Spherical Mirror Equation #1 WS - Spherical Mirror Equation #2 WS - Spherical Mirrors: Image Patterns WS - Thin Lens Equation #1: Converging Lenses WS - Thin Lens Equation #2: Converging Lenses WS - Thin Lens Equation #3: Both Types WS - Thin Lens Equation #4: Both Types WS - Two-Lens Worksheet WS - Two-Mirror Worksheet TB - 27B: Properties of Light and Refraction TB - Refraction Phenomena Reading Questions

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