A Man's Face Is 30 Cm in Front of a Concave

question 3

Multiple Choice

A man's face is 30 cm in front of a concave spherical shaving mirror.If the image is erect and 1.5 times as large as his face,what is the radius of curvature of the mirror?

• A) 40 cm
• B) 60 cm
• C) 100 cm
• D) 140 cm
• E) 180 cm

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Definitions:

Negative Correlation

A relationship between two variables in which one variable increases as the other decreases, and vice versa.

Causal Relationship

A connection between two events where one directly results in the occurrence of the other, often determined through correlation and experimentation.

Statistically Significant

A term used to describe a result that is not likely to occur randomly, but rather is likely to be attributable to a specific cause.

Statistically Accurate

Describes data or results that are precise and reliable according to statistical analysis and principles.