A Drawing Is Placed 40 Cm in Front of a Thin

question 69

Multiple Choice

A drawing is placed 40 cm in front of a thin lens.If a virtual image forms at a distance of 50 cm from the lens,on the same side as the drawing,what is the focal length of the lens?

• A)-45 cm
• B)75 cm
• C)90 cm
• D)200 cm

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Definitions:

Resource Allocation

The process of distributing available resources among various competing needs and wants.

Laissez-Faire

An economic philosophy of free-market capitalism that opposes government intervention.

Circular Flow

A model in economics that illustrates how money moves through an economy between producers and consumers, highlighting the interdependencies of different economic sectors.

Public Ownership

Ownership of assets by the government or public entities, as opposed to private individuals or companies.