Two Lenses, the First with Focal Length 10

question 16

Multiple Choice

Two lenses, the first with focal length 10.0 cm and the second with focal length −12.5 cm, are separated by 20.0 cm. An object of height 2.40 cm is placed 15.0 cm in front of the first lens. What is the size of the final image?

• A) 2.40 cm
• B) 4.80 cm
• C) 12.4 cm
• D) 24.0 cm
• E) 0.96 cm

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Definitions:

Catastrophic

Involving or causing sudden great damage or suffering, typically on a large scale or involving a natural disaster.

Drought

Drought is a prolonged period of abnormally low rainfall, leading to a shortage of water that adversely affects crops, animals, and human populations.

Earthquakes

Natural seismic events resulting from the sudden release of energy in the Earth's crust, leading to ground shaking and sometimes causing significant damage and loss of life.

Secondary Succession

The ecological recovery process that occurs in an environment after a disturbance that didn't remove the soil.