A Concave Mirror Has a Focal Length of 20 Cm

question 35

Multiple Choice

A concave mirror has a focal length of 20 cm.What is the magnification if the object's distance is 100 cm?

• A)1/2
• B)1/4
• C)-2
• D)4
• E)-1/4

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Definitions:

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The rate at which radioactive substances lose their activity over time, leading to the decrease in the number of radioactive atoms present.

Radioactive

Having the property of emitting ionizing radiation or particles as a result of nuclear decay.

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A large carnivorous dinosaur that lived during the late Cretaceous period and is known for its massive size and powerful bite.