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A lens of focal length 15.0 cm is held 10.0 cm from a page (the object ). Find the magnification .

Respuesta :

Answer:

Magnification, m = 3

Explanation:

It is given that,

Focal length of the lens, f = 15 cm

Object distance, u = -10 cm

Lens formula :

[tex]\dfrac{1}{v}-\dfrac{1}{u}=\dfrac{1}{f}[/tex]

v is image distance

[tex]\dfrac{1}{v}=\dfrac{1}{f}+\dfrac{1}{u}\\\\\dfrac{1}{v}=\dfrac{1}{15}+\dfrac{1}{(-10)}\\\\v=-30\ cm[/tex]

Magnification,

[tex]m=\dfrac{v}{u}\\\\m=\dfrac{-30}{10}\\\\m=3[/tex]

So, the magnification of the lens is 3.

Answer:

3.00 - Magnification.

Now this is REALLY helpful ( I hope)

Image distance :

-30.0

It is CORRECT FOR ACELLUS!

I wish you luck!