An object is placed 25 cm from a convex lens whose focal length is 10 cm. The image distance is ________ cm.

Physics

1 answer:

Aleks04 [339]3 years ago

8 0

16.67cm

Explanation:

Given parameters:

Object distance, U = 25cm (u is -25cm for convex lens)

Focal length = 10cm

Unknown parameter:

Image distance, V = ?

Solution

To solve for the image distance, we use the equation:

Images in a convex mirrors are real, inverted, smaller than the object

$\frac{1}{f}$ = $\frac{1}{v}$ - $\frac{1}{u}$

$\frac{1}{10}$ = $\frac{1}{v}$ - $\frac{1}{-25}$

image distance = 16.67cm

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