A Cup That Is 6

question 22

Multiple Choice

A cup that is 6.0 cm tall is in front of a concave lens.The image of the cup is 2.5 cm tall and 7.5 cm from the lens.What is the focal length of the lens?

• A)-6.0 cm
• B)-7.5 cm
• C)-13 cm
• D)+18 cm
• E)+6.0 cm

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Definitions:

N-Ethyl-N-Methylisobutyramide

A chemical compound, likely related to amides, which could be used in various organic syntheses but does not have a widely recognized application or definition under this specific name.

Compound Name

A designation or set of names used to identify a chemical compound based on its structure or molecular components.

Compound

A mixture formed by chemically joining two or more elements.

N,N-Diethylbutanamide

An organic compound featuring a butanamide core where both hydrogens of the amide group are replaced with ethyl groups.