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What is the focal length of a makeup mirror that produces a magnification of 1.50 when a person's face is 12.0 $\mathrm{cm}$ away? Explicitly show how you follow the steps in the Problem-Solving Strategy for Mirrors.

0.360 $\mathrm{m}$

Physics 103

Chapter 25

Geometric Optics

Reflection and Refraction of Light

University of Washington

Simon Fraser University

Hope College

University of Sheffield

Lectures

02:51

In physics, wave optics is…

10:02

Interference is a phenomen…

01:26

What is the focal length …

00:21

What is the focal length o…

01:15

What is the magnification …

01:07

A security mirror is used…

03:39

A convex mirror is used to…

00:48

A convex spherical mirror,…

04:20

For a convex spherical mir…

00:50

A 2.00 - cm - high object …

02:22

An object $15 \mathrm{cm}$…

01:49

A concave mirror has a foc…

00:25

A telescope mirror is part…

02:05

A candle is placed 15.0 cm…

01:19

When an object is placed 4…

03:45

A 4.0 -cm-tall object is p…

01:46

How far does the image of …

01:35

A convex mirror is needed …

02:09

An object is placed 20.0 $…

02:56

A convex mirror has a foca…

03:59

(II) The magnification of …

01:53

An object is $30.0 \mathrm…

we can find the focal int by writing the equation, which is one of the f is a good one worthy I plus one ordeal. Then we can write a d a in terms off to you, which is minus magnificient Stein D'oh! Substituting this value up here. So this gives us minus m d o plus one Or do you in solving for f f will become minus one were in d'oh plus one or d'oh whole mind this one. So shooting the values from the given problem we have a minus and the unification is 1.5 the distance Is there a 0.1 to offer the object uh, plus one were 0.12 Um, hold minus one. This gives us 0.36 meter, so the focal length is airborne 60 meters.

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01:12

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03:01

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11:04

Look up the values of the quantities in $a_{B}=\frac{h^{2}}{4 \pi^{2} m_{e} …

01:09

(a) During surgery, a current as small as 20.0$\mu \mathrm{A}$ applied direc…

00:40

What is the smallest separation between two slits that will produce a second…

04:11

Repeat Exercise 30.40 for $l=3$

02:10

Repeat the previous problem for glasses that are 2.20 cm from the eyes.