What Is the Maximum Kinetic Energy (In EV) of a Photoelectron

question 3

Multiple Choice

What is the maximum kinetic energy (in eV) of a photoelectron when a surface, whose work function is 5.0 eV, is illuminated by photons whose wavelength is 400 nm?

• A) 3.1
• B) −1.9
• C) 1.9
• D) 0
• E) 1.2

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Definitions:

Female Urethra

The tubular structure in females that conducts urine from the bladder to the external body.

Detrusor Muscle

The smooth muscle layer of the bladder wall that contracts during urination to expel urine from the bladder.

External Urethral Sphincter

The muscle responsible for controlling the flow of urine out of the bladder, allowing for voluntary urination.

Stretch Receptors

Sensory receptors that sense muscle stretch and reflexively help regulate muscle contraction.