NTNUJAVA Virtual Physics Laboratory
Enjoy the fun of physics with simulations!
Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/
May 21, 2018, 10:35:34 am *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
 
   Home   Help Search Login Register  
The softest thing overcomes the hardest thing in the universe. ...Lao Tzu (570-490 BC)
Google Bookmarks Yahoo My Web MSN Live Netscape Del.icio.us FURL Stumble Upon Delirious Ask FaceBook

Pages: [1]   Go Down
  Print  
Author Topic: Atomic Spectra of Hydrogen and red shift  (Read 3319 times)
0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
ahmedelshfie
Moderator
Hero Member
*****
Offline Offline

Posts: 954



«
Embed this message
on: May 15, 2010, 12:38:12 am » posted from:,,Brazil

This following applet is Atomic Spectra of Hydrogen and red shift
Created by prof Hwang modified by Ahmed
Original project Atomic Spectra of Hydrogen and red shift

This applet let you play with atomic spectra of hydrogen.

The wavelengths of hydrogen spectra lines can be described by the following equation:

1/λ=RH*(1/n12-1/n22)
where RH=1.0973732*107 m-1

You can change n1 with the slider bar. The program will plot a series of spectrum lines.
You might want to change the xmax(at the right) to see the full range of the spectra.
One of the line is thicker and with an arrow is the one with n2 equal to slider bar value.

Click within simulation region will toggle "visible spectra range".

You can also find out how the red shift of the spectra calculated from Hubble's law.
v=H0 D where the recessional velocity is proportional to the distance of the star to the earth (D). You can adjust the distance of the star.
And see the red shift of the hydrogen spectra from that star due to the expansion of the universe.
-*-
n1=1 : Lyman series (Ultraviolet)
n1=2 : Balmer series (Near Ultraviolet and Visible)
n1=3 : Paschen series (Infrared)
n1=4 : Brackett series (Infrared)
n1=5 : Pund series (Infrared)

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
  • Please feel free to post your ideas about how to use the simulation for better teaching and learning.
  • Post questions to be asked to help students to think, to explore.
  • Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!


* Atomic Spectra of Hydrogen and red shift.gif (16.28 KB, 912x408 - viewed 282 times.)
Logged
Pages: [1]   Go Up
  Print  
The softest thing overcomes the hardest thing in the universe. ...Lao Tzu (570-490 BC)
 
Jump to:  


Related Topics
Subject Started by Replies Views Last post
Atomic stability
Misc
rabea 4 22186 Last post May 25, 2010, 10:18:51 pm
by jessicasmith
Bohr's atomic model
Molecular Workbench
concord 0 10804 Last post August 21, 2005, 08:46:35 pm
by concord
Atomic Spectra of Hydrogen and red shift « 1 2 »
Modern Physics
Fu-Kwun Hwang 32 44064 Last post December 14, 2014, 05:24:07 pm
by diinxcom
Bohr's Theory of the Hydrogen Atom
Request for physics Simulations
chatria 1 10560 Last post November 19, 2008, 05:40:14 pm
by Fu-Kwun Hwang
Doppler it is not only RED/ BLUE shift we can use Inverted Square Law
Optics
tesla2 0 3590 Last post November 02, 2013, 11:01:23 am
by tesla2
Powered by MySQL Powered by PHP Powered by SMF 1.1.13 | SMF © 2006-2011, Simple Machines LLC Valid XHTML 1.0! Valid CSS!
Page created in 0.056 seconds with 24 queries.since 2011/06/15