An Object Is Placed 100 Cm in Front of a Lens

question 109

Multiple Choice

An object is placed 100 cm in front of a lens of focal length 20 cm. A second lens is placed 35 cm beyond the first, this second lens having a focal length of 8.0 cm. How far past the second lens is the final image formed?

• A)40 cm
• B)35 cm
• C)100 cm
• D)6.5 cm
• E)25 cm

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Definitions:

Interquartile Range

A measure of statistical dispersion, which is the spread between the first and third quartiles of a dataset, effectively capturing the middle 50%.

Variance

A measure of the dispersion of a set of values, calculated as the average of the squared deviations from the mean.

Computational Formula

Formula that is an algebraic manipulation of a definitional formula designed to minimize the complexity of mathematical calculations.

Variance

The average of the squared differences from the Mean, a statistical measurement of the spread between numbers in a data set.