Aconvex mirror has a focal length of 15cm. if the object is 35cm from the mirror and is 2cm tall, what is the magnification? round your answer to one decimal place.

The magnification is 0.3

Explanation:

Given:

The focal length of the convex mirror, f = 15 cm

for convex mirror f = -f = -15 cm

The distance of object, u = 35 cm

Height of the object, h = 2 cm

Now, using the mirror formula, we have

where, v is the distance of the image

on substituting the values, we get

or

or

v = -10.5 cm

now, the magnification (m) is given as:

m =

on substituting the values, we get

m =

or

m = 0.3

Hence, the magnification is 0.3

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