MIME-Version: 1.0 Content-Location: file:///C:/D9286902/Spring06.Phys1112.Quiz10.SolutionWeb.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" Department of Natural Sciences

 

Clayton College &am= p; State University

Department = of Natural Sciences

April 20, 200= 6

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Physics 111= 2 – Quiz 10

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Name  ___SOLUTION________________________________

 

 

If your nose is 30.0 cm from a concave spherical mirror having a radius of 20 cm,

 

 

    1. = Locate the image

 

f =3D (20.0 cm)/2 =3D 10.0 cm

 

do =3D 30.0 cm

 

1/di + 1/do =3D 1/f

 

1/di =3D 1/f - 1/do =3D 1/(10.0 cm) – 1/(30.0 cm) =3D 1/(15.0 cm)

 

di= =3D 15.0 cm = ; (Image is located 15.0 cm in front of the mirror.)

 

    1. = Find the lateral magnification.

 

M =3D - di /do =3D - (15.0 cm)/(30.0 cm) =3D - 0.500

 

Image is real, reduced in si= ze, and inverted.