A Positive Lens Has a Focal Length F

question 4

Multiple Choice

A positive lens has a focal length f.The image is the same size as the object when

• A)the object is at the focal point.
• B)the image is on the opposite side of the lens from the object and is the same distance from the lens as the object.
• C)the image is on the same side of the lens as the object and is the same distance from the lens as the object.
• D)The image can never be the same size as the object.
• E)None of these is correct.

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Definitions:

Overload Protection

A safety feature designed to protect electrical circuits from damage caused by excessive current flow, typically via circuit breakers or fuses.

Overload Unit

A device or component in electric motors designed to protect them from running over their designed load for too long, preventing overheating or damage.

Normally Closed

Refers to a switch or relay that is in a closed (conducting) state when at rest, opening only when activated.

Overload Contacts

Electrical contacts designed to open or close in response to an overload condition, providing protection to circuits and devices.