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Physics Chapter: Focal Length and Magnification

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Physics Chapter: Focal Length and Magnification

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Questions and Answers

What is the relationship between the focal length (f) and the radius of curvature (R) of a spherical mirror?

$f = R$

$f = rac{R}{2}$ (correct)

$f = R^2$

$f = 2R$

If the height of an object is 5 cm and the height of the image is 15 cm, what is the linear magnification (m)?

1.5

3 (correct)

0.33

Which of the following equations correctly describes linear magnification?

$m = rac{ ext{length of image}}{ ext{length of object}}$

$m = rac{ ext{height of object}}{ ext{height of image}}$

$m = rac{ ext{height of image}}{ ext{height of object}}$ (correct)

$m = rac{ ext{base of image}}{ ext{base of object}}$

If the radius of curvature (R) of a spherical mirror is 40 cm, what is the focal length (f)?

<p>20 cm</p> Signup and view all the answers

What would be the linear magnification if the height of the object is 10 cm and the height of the image is 10 cm?

<p>1</p> Signup and view all the answers

Study Notes

Focal Length and Radius of Curvature

Focal length (f) is the distance between the pole and the principal focus of a spherical mirror.
Radius of curvature (R) is twice the focal length.
The relationship between focal length and radius of curvature for a spherical mirror is: f = R/2

Linear Magnification

Linear magnification (m) is the ratio of the height of the image (hi) to the height of the object (ho).
m = hi / ho

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Description

This quiz covers the concepts of focal length and radius of curvature as they relate to spherical mirrors. Additionally, it delves into linear magnification, providing formulas and relationships essential for understanding these optical properties. Test your knowledge on these fundamental physics topics!