Go Back   Physics Help Forum > College/University Physics Help > Special and General Relativity

Special and General Relativity Special and General Relativity Physics Help Forum

Like Tree1Likes
  • 1 Post By ChipB
Reply
 
LinkBack Thread Tools Display Modes
Old Oct 5th 2016, 11:57 AM   #1
Junior Member
 
Join Date: Oct 2010
Posts: 7
regarding the length contraction and time dilation in special theory of relativity

Respected Sir,
as i read in relativity, some writer use inverse Lorentz's transformations equations and some other use Lorentz's transformations for solving length contraction and time dilation expressions with any logic that which one used in which situation.
clear me this.
with regards
vikas
vikas katoch is offline   Reply With Quote
Old Oct 5th 2016, 01:27 PM   #2
Forum Admin
 
topsquark's Avatar
 
Join Date: Apr 2008
Location: On the dance floor, baby!
Posts: 2,152
Originally Posted by vikas katoch View Post
Respected Sir,
as i read in relativity, some writer use inverse Lorentz's transformations equations and some other use Lorentz's transformations for solving length contraction and time dilation expressions with any logic that which one used in which situation.
clear me this.
with regards
vikas
You are going to need to be more specific. I don't know what you are asking for here.

-Dan
__________________
Do not meddle in the affairs of dragons for you are crunchy and taste good with ketchup.

See the forum rules here.
topsquark is offline   Reply With Quote
Old Oct 5th 2016, 02:34 PM   #3
Physics Team
 
ChipB's Avatar
 
Join Date: Jun 2010
Location: Naperville, IL USA
Posts: 2,269
I think the OP is saying that sometimes you divide by the Lorentz factor and sometimes you multiply by the Lorentz factor. In observing an object in a different inertial frame we determine the apparent length of the moving object by dividing the rest length of the object by the Lorentz factor, gamma:

$\displaystyle \gamma = \frac 1 {\sqrt{1-v^2/c^2}}$

$\displaystyle L = \frac {L_0}{\gamma} $

This yields L < L_0, so the length of the moving object appears contracted. But for a clock observed in a different inertial frame we multiply the proper time of the moving clock time by the Lorentz factor:

$\displaystyle T = T_0 \gamma$.

Hence the moving clock appears to move slower, and time is dilated (made longer).
topsquark likes this.
ChipB is offline   Reply With Quote
Old Oct 8th 2016, 08:00 AM   #4
Junior Member
 
Join Date: Oct 2010
Posts: 7
thanks

thanks
means depend on proper
vikas katoch is offline   Reply With Quote
Reply

  Physics Help Forum > College/University Physics Help > Special and General Relativity

Tags
contraction, dilation, length, relativity, special, theory, time



Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
Length contraction werehk Special and General Relativity 4 May 15th 2009 03:11 PM
Length Contraction kkh814 Special and General Relativity 1 Feb 28th 2009 08:03 AM
Relativity of time length and momentum physics123456 Special and General Relativity 0 Jan 23rd 2009 08:55 PM
relativity of time,length and momentum physics123456 Special and General Relativity 0 Jan 23rd 2009 08:53 PM
Theory of special relativity cristinaB Special and General Relativity 0 Nov 9th 2008 10:28 AM


Facebook Twitter Google+ RSS Feed