A Light Detector Based on the Photoelectric Effect Is Made

question 147

Short Answer

A light detector based on the photoelectric effect is made with cesium metal. Cesium metal has a work function of 3.40  10^19 J. What is the longest wavelength of light that one could expect to detect with this device?

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Definitions:

Temperaments

Inherent personality traits and tendencies that significantly influence individuals' behaviors and interactions from an early age.

Physical Characteristics

Observable attributes of an object or an individual, including shape, size, color, and arrangement.

Epigenesis

Mechanism that turns genes on or off and determines functions of body cells.

Monozygotic Twins

Identical twins formed from a single fertilized egg that splits into two, sharing virtually all their DNA.