Use the Following Figure for the Next Two Questions $\times$ 10^-19 J

question 8

Multiple Choice

Use the following figure for the next two questions.
Apparatus for studying the photoelectric effect
-The work function of the material being investigated is 3.8 $\times$ 10^-19 J.Light of a wavelength 350 nm is incident on the material.What is the lowest voltage needed between the cathode (C) and the anode (A) to stop any electrons ejected from the cathode from reaching the anode?

• A)2.37 V
• B)1.17 V
• C)3.54 V
• D)4.71 V
• E)None of these is correct.

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Definitions:

Arrival Rate

The frequency at which entities arrive at a certain point or system, typically measured over a specific period of time.

Arrival Rate

A term often used in queueing theory to describe the average rate at which entities (like people or messages) arrive at a service facility within a specified period.

Arrival Rate

A term often used in queueing theory that describes the average number of entities (such as customers, calls, etc.) arriving per unit of time.

Servicing Rate

The rate at which a service provider can successfully deliver a service to customers.