Basic Refraction question. Kindly help

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Homework Help Overview

The problem involves a fisherman observing a rock at the bottom of a stream and questions how deep the stream appears due to the effects of refraction. The subject area is optics, specifically focusing on the concept of refraction and apparent depth.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the application of the normal angle equation and the concept of apparent depth in relation to the index of refraction. Some express uncertainty in applying the formula, while others seek clarification on the underlying theory.

Discussion Status

There is an ongoing exchange where some participants are attempting to clarify the concept and formula related to refraction. Guidance has been offered regarding the theory behind the formula, but no consensus or resolution has been reached yet.

Contextual Notes

Participants are working within the constraints of the problem as a homework assignment, which may limit the information shared and the depth of discussion.

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Homework Statement



A fisherman in a stream 20 cm deep looks downward into the water of stream
and sees a rock on the stream bed.
How deep does the stream appear to the fisherman?

Homework Equations


We Assume that the index of refraction of the water is 1.33.


The Attempt at a Solution


I am not able to apply the normal angle equation here..nuts !
 
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Kindly let me know the formula concept and i will calculate myself. I am really not getting it.
Thanks in advance
 
The formula is derived according to the following theory.
It's a method for measuring refractive index using apparent depth, but you can apply it to your problem quite easily.
RefIndex-1.jpg
 
Thanks mate. You really explained me the concept behind it too
Thanks once again. yoyo !
 

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