subject
Physics, 03.02.2020 00:57 vspink9962

Consider a beam of electrons in a vacuum, passing through a very narrow slit of width 2.00μm. the electrons then head toward an array of detectors a distance 1.068 m away. these detectors indicate a diffraction pattern, with a broad maximum of electron intensity (i. e., the number of electrons received in a certain area over a certain period of time) with minima of electron intensity on either side, spaced 0.527 cm from the center of the pattern. what is the wavelength λ of one of the electrons in this beam? recall that the location of the first intensity minima in a single slit diffraction pattern for light is y=lλ/a, where l is the distance to the screen (detector) and a is the width of the slit. the derivation of this formula was based entirely upon the wave nature of light, so by de broglie's hypothesis it will also apply to the case of electron waves.

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 18:00
Consider an ideal gas at 27.0 degrees celsius and 1.00 atmosphere pressure. imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. what is the length l of an edge of each small cube if adjacent cubes touch but don't overlap?
Answers: 2
question
Physics, 22.06.2019 20:10
On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?
Answers: 1
question
Physics, 22.06.2019 23:30
1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?
Answers: 3
question
Physics, 23.06.2019 00:20
What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%
Answers: 2
You know the right answer?
Consider a beam of electrons in a vacuum, passing through a very narrow slit of width 2.00μm. the el...
Questions
question
Mathematics, 07.06.2021 09:50
question
Biology, 07.06.2021 14:00
Questions on the website: 13722362