[Answered] An electron has a wavelength of 0.123 nm. What is its energy in eV? A) 80. keV B) 20. keV C) ...

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Author Question: An electron has a wavelength of 0.123 nm. What is its energy in eV? A) 80. keV B) 20. keV C) ... (Read 37 times)

elizabeth18

Hero Member
Posts: 559

on: Jul 27, 2018

An electron has a wavelength of 0.123 nm. What is its energy in eV?

A) 80. keV
B) 20. keV
C) 40. keV
D) 10. keV
E) 60. keV

Question 2

Above what speed do the Relativistic and the Newtonian expressions for KINETIC ENERGY disagree by more than 1?

What will be an ideal response?

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jordangronback

Sr. Member
Posts: 339

Reply #1 on: Jul 27, 2018

Answer to Question 1

D

Answer to Question 2

v/c = 0.12 (v = 3.6 107 m/s )

elizabeth18

Member
Posts: 559

Reply 2 on: Jul 27, 2018

YES! Correct, THANKS for helping me on my review

amandanbreshears

Member
Posts: 320

Reply 3 on: Yesterday

Gracias!

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