What Wavelength of Light Is Required to Cause the Ejection

question 17

Multiple Choice

What wavelength of light is required to cause the ejection of photoelectrons with kinetic energies of 5.0 *10^-20 J from a calcium surface ( = 4.60 * 10^-19 J) ?

• A) 485 nm
• B) 390 nm
• C) 308 nm
• D) 632 nm
• E) 480 nm

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Definitions:

Dissociative Amnesia

A psychological disorder characterized by temporary memory loss that cannot be attributed to a common medical condition.

Memory Loss

The inability to recall past experiences or information, which can be temporary or permanent, partial or complete.

Somatic Symptom

A physical symptom that can cause significant distress or impairment, not fully explained by a medical condition, substance use, or another mental disorder.

DSM-5

The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders, a comprehensive classification of mental disorders published by the American Psychiatric Association.