Index of Refraction of Liquid: Find Value

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Homework Help Overview

The discussion revolves around determining the index of refraction of a liquid based on the observed position of an image formed by a plane mirror beneath the liquid's surface. The scenario involves a small object floating on the surface of the liquid and the image being seen at a specific depth below the surface.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are exploring the implications of light refraction in the context of the problem, questioning why the image appears at a different depth than expected without the liquid. Some are seeking hints to guide their understanding of the principles involved.

Discussion Status

The discussion is ongoing, with participants expressing a need for guidance and hints. There is a suggestion to move the question to the appropriate homework section for better assistance. Some participants are emphasizing the importance of showing effort in understanding the problem.

Contextual Notes

Participants are reminded of the forum rules regarding homework questions and the necessity of demonstrating personal effort in problem-solving.

Voong
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A plane mirror is placed horizoually at the bottom of a transparent liquid of 10cm depth. When one looks at the image of a small object floating at the surface of the liquid right above the object, the image is seen at 14cm below the surface of the liquid. Find the value of the index of refraction of the liquid.
 
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Please help me with some hint..
 
Try putting this in the homework section. They should be able to help you properly there!
 
Why no one help me here?
 
Voong said:
Why no one help me here?

This looks like a homework question, and per the rules of the Physics Forums all homework questions should be posted in the appropriate forum. That way the homework helpers don't have to wander around the whole forum to help you!
 
In addition, you are to show some effort yourself. What do you know about light passing through water that would help here? In particular, why would the image not be 20 cm below the surface, where it would be if there were no water?
 

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