Two Candles Are Lit and Separated by 0

question 14

Multiple Choice

Two candles are lit and separated by 0.10 m. If the diameter of the pupil of an observer's eye is 3.5 mm, what is the maximum distance that the candles can be away from the observer and be seen as two light sources? Use 545 nm for the wavelength of light in the eye.

• A)170 m
• B)340 m
• C)530 m
• D)680 m
• E)850 m

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Definitions:

Similar Triangles

Triangles that have identical angles and proportional sides but may differ in size.

Proportional

Being proportional means two quantities maintain a constant ratio or relationship relative to one another, exemplified by the equation \(y = kx\), where \(k\) is the constant of proportionality.

Length

The measurement of something from end to end or the extent of something along its greatest dimension.

X

Often used to represent an unknown quantity or variable in mathematical equations and expressions.