Ansel Places an Object 30 Cm from a Thin,convex Lens

question 28

Multiple Choice

Ansel places an object 30 cm from a thin,convex lens along the axis.If a real image forms at a distance of 15 cm from the lens,what is the focal length of the lens?

• A) 15 cm
• B) 10 cm
• C) 7.5 cm
• D) 30 cm

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Definitions:

Pulse Rate

The number of heartbeats per minute, indicating the heart rate; it is often measured at resting conditions.

Orthostatic Hypotension

A form of low blood pressure that happens when standing up from sitting or lying down, causing dizziness or fainting.

Blood Pressure

The pressure exerted by circulating blood upon the walls of blood vessels, typically measured in the arms.

Positional Changes

Adjustments in body position or posture that may relieve symptoms or aid in treatment of medical conditions.