A Two Lens Magnifying System Uses Lenses of Focal Lengths

question 15

Multiple Choice

A two lens magnifying system uses lenses of focal lengths 2.5 and 9.5 cm for the objective and eyepiece respectively.The two lenses are positioned 23 cm apart.An object for study is placed 3.0 cm in front of the objective lens.Find the magnification of the final image.

• A)15
• B)6.3
• C)22
• D)32
• E)47

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Definitions:

Space Shuttle

A reusable spacecraft system used by NASA for human spaceflight missions, including launches into orbit and landings back on Earth.

ANOVA

Short for Analysis of Variance, a statistical method used to compare the means of three or more samples to find significant differences.

P-value

A statistical measure that helps scientists determine the significance of their research results; the probability of observing the results given that the null hypothesis is true.

F-ratio

A statistical measure used in ANOVA tests that compares the variance between groups with the variance within groups.