an image is located -26.42cm from a concave lens. the magnification for this lens is 0.587....

an image is located -26.42cm from a concave lens. the magnification for this lens is 0.587. a) find the object distance. b) find the focal length

Expert Solution

Image distance v = -26.42 cm

magnification of the lens m = 0.587

Object distance u = ?

We know m = v/ u

From this object distance u = v / m

= -26.42 / 0.587

= -45 cm

(b). Focal length f = ?

from the relation (1/u) +(1/v) = (1/f)

(1/-45)+(1/-26.42) = (1/f)

(1/f) = -0.06

f = -16.64 cm

genius_generous answered 2 years ago

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