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What is the longest-wavelength EM radiation that can eject a photoelectron from silver, given that the binding energy is 4.73 eV? Is this in the visible range?

263 $\mathrm{nm}$

Physics 103

Chapter 29

Introduction to Quantum Physics

Quantum Physics

Cornell University

University of Michigan - Ann Arbor

Simon Fraser University

Hope College

Lectures

02:51

Quantum mechanics (QM) is …

10:58

In physics, the photoelect…

02:06

What is the longest wavele…

02:12

01:45

Find the longest-wavelengt…

01:29

01:46

The minimum energy require…

01:14

The wavelength associated …

01:03

What is the wavelength of …

02:19

03:56

A metal has a work functio…

03:07

When a hydrogen atom is in…

03:08

(I) What are the shortest-…

01:30

It takes $7.21 \times 10^{…

01:31

If the work function of a …

02:11

UV radiation having a wave…

01:36

Calculate the binding ener…

04:08

03:13

What is the maximum wavele…

09:22

(I) What is the longest wa…

So in this problem, we have a super Adam and we should alight on this, Adam so that the electron comes out. So we know that. Ah, energy of this photo. So this is the photo. Okay, So energy of the photo is, uh ah h times after where f f is the frequency of this photo. So this equal the bunny energy off this electron plus the kind navigator Jarvis of this electoral right? And because we want to find out the minimum of pregnancy that we need Thio, release this electron so que the kind of energy here zero So we have, Ah, the total energy Equal edge times f it for the money energy. So by energy, according to this problem, it's 4.73 electro volts. So we camped in the pregnancy and they consider it equal 1.14 times turned to the 15th hurts. So this is the frequency of the photo, and ah, you can calculate the wave lands based on this frequency. The weightless lambda equals C D. Bob, I say is the speed of light and this equal to 62 animators. Ah, so it is. It is actually out off the visible range of the light because the visible range it's ah from full 100 centimeters, Thio. 700 centimeters. So this one is not in this. This result is not in this. Ah, it's it's not in this range.

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