Two Converging Lenses, the First with Focal Length 40 Cm

question 18

Multiple Choice

Two converging lenses, the first with focal length 40 cm and the second with focal length 33¹/₃ cm, are separated by 10.0 cm. An object of height 6.0 cm is placed 20.0 cm in front of the first lens. Where is the final image formed?

• A) 10 cm before the first lens
• B) 50 cm before the first lens
• C) 50 cm after the second lens
• D) 100 cm after the second lens
• E) 33¹/₃ cm after the second lens

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Definitions:

Klinefelter's Syndrome

A genetic condition in males characterized by the presence of an extra X chromosome, leading to various physical and cognitive effects.

XXY Pattern

A chromosomal arrangement in humans associated with Klinefelter syndrome, characterized by the presence of an extra X chromosome in males.

Cross-Sectional Design

A research method that involves observing subjects from different demographics and backgrounds at a single point in time to compare and contrast.

Recessive Genes

Genes that are expressed in offspring only when inherited from both parents, as opposed to dominant genes, which are expressed when inherited from at least one parent.