DO parallel lines EVER meet??? at infinity?

Question

anonymous · Answer

@Mashy

anonymous · Answer

By definition they meet at infinity .. :P

anonymous · Answer

ohk!,,,,,then all cleared!

anonymous · Answer

its like saying "you study only on a blue moon day"

anonymous · Answer

means?

anonymous · Answer

they meet only sometimes?

anonymous · Answer

you never heard of that phrase?

anonymous · Answer

Blue moon never happens :D..

anonymous · Answer

OHK!

anonymous · Answer

so its again one of" Shut up and Accept" stuff

anonymous · Answer

no no.. its actually easy to get this.. 

just like when is force between two charges zero? 

its never zero... as long as you take them infinitely far away..

anonymous · Answer

This has physical significance.. depending upon our experimental set up, we can usually take 10 times that distance as roughly infinity

anonymous · Answer

Current in a loop takes infinite time to reach its max value..  but usually if we wait 7 or 8 times the time constant.. we consider it to be good enough as infinite time

anonymous · Answer

ok,,,,so parallel beams of light DO converge WITHOUT a lens,,,,after a kilometer or so?

anonymous · Answer

No.. on the contrary.. if you have like a beam of light divering or converging light.. which are only 1 degree apart.. and you are working in a domain of like 5 to 6 cm.. you can consider them to be parallel.. (cause in your domain.. they may meet faaarr away.. which is good enough as infinity)

anonymous · Answer

|dw:1393702668917:dw|
that box is your working domain.. 
you can say.. hey they are parallel!

anonymous · Answer

thats the reason, point source at infinity creates parallel wavefront..|dw:1393702760834:dw|

in that box of your working domain.. the sphere looks like a plane.. and you say.. yup these are parallel rays. and having plane wavefront!

anonymous · Answer

wow thanks1

anonymous · Answer

that cleared my doubt

anonymous · Answer

great.. now i ll sleep :P.. 

besides didn't your exams start?

anonymous · Answer

today :english over

anonymous · Answer

oh.. which is next? physics?

anonymous · Answer

after 3 days :Physics

anonymous · Answer

awesome..all the best.. Ace it!

anonymous · Answer

thank u !

sachin00007 · Answer

parallel lines meet at infinity  but it is considered as they do not meet  as infinity never comes

trantom · Answer

parallel lines are described with simple 2D functions, and infinity is a hyperreal number, so you can't really talk about the two together unless you're like... a Doctor of mathematical infinities or something like that xD

anonymous · Answer

parallel have the same gradient then if you draw it into a graph the two lines never meet !
sorry for my opinion its so simple bec. im only grade 7

anonymous · Answer

ok,, simple conclusion ,  they dont meet in maths,, but meet in physics (at infinity)