Use the Formula $\frac { 1 } { f } = \frac { 1 } { s _ { 0 } } + \frac { 1 } { s _ { i } }$

question 89

Multiple Choice

Use the formula $\frac { 1 } { f } = \frac { 1 } { s _ { 0 } } + \frac { 1 } { s _ { i } }$ . Given f = 13.5 cm and $s 0$ = 25.5 cm, find $S _ { i }$ .

• A) 17.6 cm
• B) 19.5 cm
• C) 12.5 cm
• D) 28.7 cm
• E) 8.83 cm

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Definitions:

Bystander Effect

A psychological phenomenon in which individuals are less likely to offer help to a victim when other people are present, often due to a diffusion of responsibility.

Bystander Effect

In social psychology, this refers to the tendency of people to be less inclined to provide aid to someone in need when they are in a group.

Clinical

Pertaining to the observation, diagnosis, and treatment of patients, especially those with psychological disorders.

Counseling

A professional guidance process involving therapeutic conversations and techniques to help individuals cope with personal, psychological, or social challenges.