Find Angle of Refraction: Snell's Law Solution

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Homework Help Overview

The discussion revolves around determining the angle of incidence and angle of refraction for a ray of light traveling from a snail in water to an observer's eye. The context involves applying Snell's Law with known indices of refraction for air and water.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the need to identify the normal line to apply Snell's Law effectively. There are inquiries about the dimensions of the setup, specifically the depth of water and the distance from the snail to the observer.

Discussion Status

The discussion is ongoing, with participants seeking additional information to clarify the problem setup. Some guidance has been offered regarding the need for dimensions, but no consensus or resolution has been reached yet.

Contextual Notes

Participants note the specific indices of refraction for air and water, as well as the depth of the water (5m) and the distance from the observer's eye to the snail (25m). There is an acknowledgment that more information may be necessary to proceed.

IBNU1
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Homework Statement


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I need to find how a ray of light will travel from the snail towards Andrews eye.
I need to find the angle of incidence and angle of refraction.
I know the index of refraction of both materials
Air: 1
Water 1.33

Homework Equations


Snells law
1.33 *sin(X) = sin(y)
x is angle of incidence
y is angle of refraction

The Attempt at a Solution


I only know how to solve these problems when I have a normal line
How do I find the normal line[/B]
 
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IBNU1 said:

Homework Statement


[ IMG]https://lh5.googleusercontent.com/E...lcg_XBTdwS863jFltmT7FF4b_iHfnRVnKXNREgjMZyCGo[/PLAIN]

I need to find how a ray of light will travel from the snail towards Andrews eye.
I need to find the angle of incidence and angle of refraction.
I know the index of refraction of both materials
Air: 1
Water 1.33

Homework Equations


Snells law
1.33 *sin(X) = sin(y)
x is angle of incidence
y is angle of refraction

The Attempt at a Solution


I only know how to solve these problems when I have a normal line
How do I find the normal line
Hello IBNU1. Welcome to PF .

Do you have any dimensions for this ?
 
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SammyS said:
Hello IBNU1. Welcome to PF .

Do you have any dimensions for this ?
Sorry I forgot to include them
The depth of the water is 5m and the distance from his eye to the snail is 25 m
 
IBNU1 said:
Sorry I forgot to include them
The depth of the water is 5m and the distance from his eye to the snail is 25 m
I seems to me that you need to know more than that.
 

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