A Converging Lens of Focal Length 20 Cm Is Placed

question 43

Multiple Choice

A converging lens of focal length 20 cm is placed in contact with, and to the left of, a diverging lens of focal length 30 cm.If an object is placed 40 cm to the left of the converging lens, the total magnification is:

• A)-3.0
• B)-1.5
• C)-1.0
• D)2.0
• E)3.0

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Definitions:

Purchase

The action of buying goods or services.

Price

The financial sum expected, needed, or handed over in exchange for an item.

Quantity Supplied

The amount of a good or service that producers are willing and able to sell at a given price over a specific period of time.

Profitable

Capable of generating financial gain or benefits exceeding costs, making a venture worthwhile.