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Suppose you have an unknown clear substance immersed in water, and you wish to identify it by finding its index of refraction. You arrange to have a beam of light enter it at an angle of $45.0^{\circ},$ and you observe the angle of refraction to be $40.3^{\circ} .$ What is the index of refraction of thesubstance and its likely identity?

$\mathrm{n}=1.46 .$ the unknown material is most probably fused quartz.

Physics 103

Chapter 25

Geometric Optics

Reflection and Refraction of Light

University of Washington

Simon Fraser University

University of Winnipeg

Lectures

02:30

In optics, ray optics is a…

10:00

In optics, reflection is t…

02:00

A ray of light, emitted be…

02:16

01:42

You can determine the inde…

01:24

00:59

A layer of oil $(n=1.45)$ …

01:07

A ray of light is travelin…

01:13

A ray of light has an angl…

03:00

The index of refraction fo…

(I) The critical angle for…

I) The critical angle for …

00:55

01:33

$\bullet$$\bullet$ A ray o…

02:54

Reflection and Refraction<…

00:30

Light traveling in water s…

The angle of incidence and…

01:41

02:26

What is the index of refra…

00:43

A block of glass has a cri…

04:44

A laser beam is traveling …

we can find that affected next offer material that he's immersed in the water. Let's say here we have water and the material is immersed in the water. We can find a refracting next off the material and identify its identity by writing a snail's law. So CNN's losses the refractive index High times incident angle physical to end if we'll sign their duck final angle. So an f we need which you can write it. And I sign that I derided by side Look at this sub strictly values they and I. We have Eastern frankness water, which is 1.33 times sine angle off incident. We Harry's of 45 divided by sign that I actually here is 40.3. So So you find this expression gives us a perfect index in F. Off the material is 1.46 Looking at the table, this is probably the fused quartz Who's quartz

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