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An X-ray photon with a wavelength of 0.240 nm scatters froma free electron at rest. The scattered photon moves at an angle of$125^{\circ}$ relative to its incident direction. Find (a) the initial momentum and (b) the final momentum of the photon.

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Physics 103

Chapter 30

Quantum Physics

Rutgers, The State University of New Jersey

University of Michigan - Ann Arbor

University of Washington

Hope College

Lectures

02:51

In physics, wave optics is…

10:02

Interference is a phenomen…

07:54

An incident x-ray photon o…

04:18

An incident $x$ -ray photo…

04:05

09:07

An X-ray photon scatters f…

07:49

04:31

03:12

An x-ray photon of wavelen…

11:51

A photon with wavelength $…

01:35

An incident X-ray photon o…

04:48

A photon is incident on an…

Revenant off extra food on lender is equal to zero point 240 nana meters. This is equal to 0.24 Zito multiply by 10 to the power minus nine meters. You are initial momentum off. Electron is equal to zero and angle of the scattered foot on angle of the scattered for dawn Peter is equal to 1 25 degrees. Artie here. What is the initial momentum off the foot on? Well, let's calculate change in valence. Change in violent equals. It's divided by Mars. Off electron multiply. They speed off light into one minus co Sign off. Peter, who signed Tita and Changing Dublin, equals it is Ah, 6.63 multiplied by 10 to the power of minus 34. Divided by mass off electron is 9.1, multiplied by 10 to the power minus 27. Ah, sorry. It's minus 31 27. It's minus Ah um minus cutie bun minus 31. Multiply the speed of light is three. Multiply may tend to devour eight meters per second. One minus school signed theories 25 Big rates change in gavlin is equal to zero point free. 81 multiplied by 10 to the power minus 11 meters. And this gives us, uh, three point H one multiplied by 10 to the power minus two out majors. This is the change in violent. We know they changing. Valent equals lander prime minus lender Linda Prime is the prevalent after the foot on scatters the prevalent of scattered foot on is Lambda Crime. Well changing babble in these three point 81 multiplied by 10 to the power minus 12 is equal to Lambda Prime minus Landa land, a zero point 240 multiply by 10 to the power minus line and therefore Lambda Prime equals 2.44 multiplied by 10 to the power minus. Then maters no, let's calculate initial momentum off dawn. So Manta Michel's age, divided by Lambda, it is playing constant 6.63 Multiply by 10 to the power minus 34. Divided by Lambda and lander is 0.240 Multiply. We tend to the bar minus nine, and this gives us 2.8. Multiply by 10 to the power minus 24 minus 24. Kimmel Graham Major for a second and final moment. Um, momentum off the foot on after it scatters, it is etched divided by land, a prime. Let's plug in the values, which is 6.63 Multiply return to the father minus 34 divided by lender Prime is a 2.4 forward. Multiply me 10 to the power minus 10 and then four. Final momentum is Ah, 2.7, multiplied by 10 to the power minus 24 kill around meter or second.

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