Appa * Log in to MyBell A diverging lens has a focal length of magnitude 23.0 cm

Question

Appa * Log in to MyBell A diverging lens has a focal length of magnitude 23.0 cm. (a) Locate the images for each of the following object distances 46.0 cm distance location cm 23.0 cm distance cm location -Select 11.5 cm distance location cm (b) Is the image for the object at distance 46.0 real or virtual? O real O virtual Is the image for the object at distance 23.0 real or virtual? O real virtual Is the image for the object at distance 11.5 real or virtual? O real virtual (e) Is the image for the object at distance 46.0 upright or inverted? O upright

Explanation / Answer

for diverging lens

f < 0

f = 23 cm

1/u + 1/v = 1/f

46 cm

1/v = 1/f - 1/u

v = -15.33 cm

23 cm

v = -11.5 cm

11.5 cm

v = -7.67 cm

part b )

virtual , virtual , virtual

part c )

upright , upright , upright

part d )

m = -v/u

46 cm

m = 0.33

23 cm

m = 0.5

11.5 cm

m = 0.67

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