An Object Is Placed 25 Cm in Front of a Lens

question 2

Multiple Choice

An object is placed 25 cm in front of a lens of focal length 20 cm. 60 cm past the first lens is a second lens of focal length 25 cm. How far past the 25 cm lens does the final image form?

• A) 20 cm
• B) 40 cm
• C) 16 cm
• D) 25 cm
• E) 47 cm

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Definitions:

DSM-5 Criteria

The diagnostic criteria set forth in the Fifth Edition of the Diagnostic and Statistical Manual of Mental Disorders, used by healthcare professionals to diagnose and classify mental disorders.

Autism Spectrum Disorder

A developmental disorder characterized by difficulties with social interaction and communication, and by restricted or repetitive patterns of thought and behavior.

Intellectual Disability

An impairment identified by notable restrictions in intellectual capabilities as well as in everyday social and practical abilities.

IQ

A measure of a person's reasoning and problem-solving abilities, relative to a statistical norm.