An Object Placed 4 Cm to the Left of a Positive

question 52

Multiple Choice

An object placed 4 cm to the left of a positive lens of focal length 2 cm produces an image 4 cm to the right of the lens. A negative lens placed at the focal point of the positive lens as shown produces a final image 6 cm to the right of the negative lens. The negative lens has a focal length of

• A) -1.5 cm
• B) -3.0 cm
• C) -6.0 cm
• D) 10 cm
• E) -2.0 cm

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Definitions:

Neurotransmitter

Chemical substances that transmit signals across a synapse from one neuron to another.

Freud

Sigmund Freud, an Austrian neurologist best known for developing psychoanalysis, a method through which an analyst unpacks unconscious conflicts based on the free associations, dreams, and fantasies of the patient.

Dream Content

Refers to the images, thoughts, and sensations experienced during sleep.

SIDS

Sudden Infant Death Syndrome, the unexplained death of a seemingly healthy baby, usually during sleep, without a clear cause even after a thorough investigation.