If Light at 193 Nm from an Argon-Fluoride Laser Is $\times$

question 14

Short Answer

If light at 193 nm from an argon-fluoride laser is incident on a gold metal surface,electrons with kinetic energy of 1.80 $\times$ 10^-19 J are produced.What is the work function of gold in kJ/mol? What is the minimum wavelength of light in nm required to produce photoelectrons from gold (zero kinetic energy)?

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Definitions:

Flat Lesion

A skin change that is level with the surrounding skin and cannot be felt; it is observed rather than felt.

Different Pigmentation

Variations in skin color among individuals due to differences in melanin production and distribution.

Macule

A flat, distinct, discolored area of the skin smaller than 1 cm in diameter, not involving any change in the thickness or texture of the skin.

Pressure Ulcer

Localized damage to the skin and underlying tissue, mostly over a bony prominence, due to pressure or pressure in combination with shear.