What Is the Power of the Lens That Has a Focal

question 137

Multiple Choice

What is the power of the lens that has a focal length of 40 cm and a diameter if 5.0 cm?

• A) +2.7 diopters
• B) -2.5 diopters
• C) +0.20 diopters
• D) +2.5 diopters
• E) +20 diopters

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Definitions:

Investment Required

Investment required refers to the total amount of capital needed to undertake a project, start a new business, or make a significant purchase.

Profitability Index

A financial tool used to measure the relative profitability of an investment, calculated as the present value of future cash flows divided by initial investment.

Internal Rate Of Return

A discount rate that makes the net present value (NPV) of all cash flows from a particular project equal to zero.

Preference Decisions

Decisions made in business or personal finance that reflect a choice or priority among various alternatives, often based on factors such as risk, return, or personal values.