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diverging lens focal length = 20cm, Image distance? with object distance of 40cm?
An object is placed in front of a diverging lens
with a focal length of 20.0 cm.
a) Find the image distance for an object
distance of 40.0 cm. Answer in units of cm.
find magnification please??
1 Answer
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- 1 decade agoFavorite Answer
p=object distance
q=image distance
f=focal length( negative because diverging lens)
1/p+1/q=1/f
1/40+1/q=1/-20
q=-13.3cm
magnification equation:
M=-q/p
=13.3/40
=.3325
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