A Concave Mirror Forms a Real Image Which Is Twice

question 52

Multiple Choice

A concave mirror forms a real image which is twice the size of the object.If the object is 20 cm from the mirror, the radius of curvature of the mirror must be about:

• A)13 cm
• B)20 cm
• C)27 cm
• D)40 cm
• E)80 cm

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Definitions:

Cohesion

The degree to which components of a system work or stick together as a united whole, commonly used to refer to group solidarity or unity.

Ancestral Longevity

The lifespans and aging processes of our ancestors, impacting genetic predispositions to longevity in current populations.

Life Expectancy

The average period that a person may expect to live, which can vary based on factors like country, gender, and lifestyle.

Life Expectancy

The typical duration a person is anticipated to live.