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Light with a frequency of $1.14 \times 10^{15} \mathrm{Hz}$ ejects electrons from the surface of sodium, which has a work function of 2.28 $\mathrm{eV} .$ Whatis the minimum de Broglie wavelength of the ejected electrons?

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Physics 103

Chapter 30

Quantum Physics

Hope College

University of Sheffield

McMaster University

Lectures

02:51

In physics, wave optics is…

10:02

Interference is a phenomen…

01:51

Light strikes a sodium sur…

03:05

Light of wavelength 300 $\…

02:04

Find the wavelength of rad…

04:39

Light of wavelength 424 $\…

06:45

Light of wavelength 464 nm…

02:25

Light of wavelength 360 $\…

03:19

Visible light shines on th…

01:29

Radiation of a certain wav…

07:50

The photoelectric threshol…

03:45

$\bullet$ The photoelectri…

Quincy of Flight F is equal to 1.14 Multiply identity Baller 15. Hers and work function, uh, sodium is equal to do point to eight electron volts. Well, we need to find a minimum. The broccoli bab lint off rejected electrons, so Lander is unknown. Well, the bra believe Evelyn equals. It's divided by most times velocity. But first of all, let's calculate kinetic energy. We know they itch. F equals work function. Bless kinetic energy on kinetic energy equals H F minus w. Let's plug in the values Kinetic energy is equal to itch is 6.63 Multiply my 10 to the power minus 34. Multiply every frequency F is 1.14 Multiply by 10 to the power 15 minus, uh, work function is, uh, two point to aid electron, Walt, and one electron won't be equals 1.6. Multiply by 10 to the power minus 19. Jules so connected Gunner team equals three points. Nine. Multiply by 10 to the dollar minus 19. Jules and kinetic energy can be written is half, and we swear half every square equals 3.9. Multiply returned to the power minus 19 and therefore we square equals we squared equals 0.86 multiplied by tentative baller 12 and b equals we equals ah, square root of 0.86 wanted live identity bomber six and multiplying The two numbers we equals we lost equals 9.3 multiply by 10 to the power five meter for a second and therefore Lambda equals 6.63 most of life by 10 to the dollar minus 34 divided by most off electron is 9.1 most of my 10 to the power minus 31 Multiply maybe lost his mind 0.3 Multiply by 10 to the power five and this gives us Linda is equal to 7.3 Multiply by gently baller minus nine meters and this equals Ah 7.3 nanometers, 7.3 nano meters.

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In physics, wave optics is the study of the behavior of light, or other elec…

Interference is a phenomenon in which two waves superpose to form a resultan…

Light strikes a sodium surface, causing photoelectric emission. The stopping…

Light of wavelength 300 $\mathrm{nm}$ strikes a metal whose work function is…

Find the wavelength of radiation that can eject $0.10-\mathrm{eV}$ electrons…

Light of wavelength 424 $\mathrm{nm}$ falls on a metal which has awork f…

Light of wavelength 464 nm falls on a metal which has a work function of 2.2…

Light of wavelength 360 $\mathrm{nm}$ strikes a metal whose workfunction…

Visible light shines on the metal surface of a photocell having a work funct…

Radiation of a certain wavelength causes electrons with a maximum kinetic en…

The photoelectric threshold wavelength of a tungsten surface is 272 nm. Calc…

$\bullet$ The photoelectric threshold wavelength of a tungsten surface is 27…

02:58

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06:53

Using the Bohr model, estimate the wavelength of the $\mathrm{K}_{\alpha}$ X…

07:17

The electron in a hydrogen atom makes a transition from the $n=4$ state to t…

05:59

Predict/Calculate A convex lens $(f=20.0 \mathrm{cm})$ is placed10.0 $\m…

05:05

Consider a particle of mass $m$ confined in a one-dimensional box of length …

01:38

CE Suppose you perform an experiment on the photoelectric effect using light…

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Predict/Calculate REFERRING TO EXAMPLE $28-3$ The wavelength ofthe light…

01:27

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What is the linear separation between horizontal lines on thescreen?…

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