A 6.79 mm high firefly sits on the axis of, and 10.9 cm in front of, the thin lens A, whose focal length is 6.17 cm. Behind lens A there is another thin lens, lens B, with a focal length of 23.9 cm. The two lenses share a common axis and are 62.7 cm apart. Is the image of the firefly that lens B forms real or virtual? real virtual How far from lens B is this image located? Express the answer as a positive number. image distance from lens B: cm What is the height of this image? Express the answer as a positive number. image height: mm Is this image upright or inverted with respect to the firefly? upright inverted

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A 6.79 mm high firefly sits on the axis of, and 10.9 cm in front of, the thin lens A, whose focal length is 6.17 cm. Behind lens A
there is another thin lens, lens B, with a focal length of 23.9 cm. The two lenses share a common axis and are 62.7 cm apart.
Is the image of the firefly that lens B forms real or virtual?
real
virtual
How far from lens B is this image located? Express the answer as a positive number.
image distance from lens B:
cm
What is the height of this image? Express the answer as a positive number.
image height:
mm
Is this image upright or inverted with respect to the firefly?
O upright
inverted
Transcribed Image Text:A 6.79 mm high firefly sits on the axis of, and 10.9 cm in front of, the thin lens A, whose focal length is 6.17 cm. Behind lens A there is another thin lens, lens B, with a focal length of 23.9 cm. The two lenses share a common axis and are 62.7 cm apart. Is the image of the firefly that lens B forms real or virtual? real virtual How far from lens B is this image located? Express the answer as a positive number. image distance from lens B: cm What is the height of this image? Express the answer as a positive number. image height: mm Is this image upright or inverted with respect to the firefly? O upright inverted
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