When an Object Is 12 Cm in Front of a Concave

question 7

Multiple Choice

When an object is 12 cm in front of a concave spherical mirror,the image is formed 3.0 cm in front of the mirror.What is the focal length of the mirror?

• A)15 cm
• B)4.0 cm
• C)2.4 cm
• D)1.3 cm

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Definitions:

Covariance

A measure that indicates the extent to which two variables change together, indicating the direction of their linear relationship.

Linear Relationship

A type of relationship between two variables where a change in one variable is associated with a proportional change in the other.

COV

COV refers to the coefficient of variation, a statistical measure of the relative dispersion or variability of a data set relative to its mean, expressed as a percentage.

Covariance

A measure that indicates the extent to which two variables change together; positive covariance indicates that both variables tend to move in the same direction.