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![[Post New]](/templates/default/images/icon_minipost_new.gif) 1 Jan 2008 00:27:49 IST
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"If u win u need not have to explain and if u lose thn u should not be there to explain"
-Adolf Hitler |
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1 Jan 2008 00:31:46 IST
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maseless exactly nai hota....but uski velocity ko bhi to nglct nai kr skta... it cmpnsates 4 d mass
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PROGRESS ISN'T MADE BY EARLY RISERS OR HARD WORKERS, BUT BY LAZY PEOPLE TRYING TO FIND EASIER WAY TO DO THE SAME.....SO BE LAZZZZYY!!!! |
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1 Jan 2008 00:51:44 IST
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Well, Its kinetic energy is E = hc/lambda [usual meanings] And momentum P = h/lambda
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My birthday is no ordinary day.
Its the day when i declared in my own voice,
I WILL NOT GO QUIETLY INTO THE NIGHT,
I WILL NOT VANISH WITHOUT A FIGHT,
I AM GOING TO LIVE ON,
I AM GOING TO SURVIVE,
I AM GOING TO GET WHATEVER I WANT.
I CELEBRATE MY BIRTHDAY, AS MY INDEPENDENCE DAY !!!!!!!!! |
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1 Jan 2008 01:01:02 IST
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massless matlab rest mass or proper mass is zero.actually
Ke=mc^2(y-1)
where y=1/sqrt(1-v2/c2
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K E = 1/2mv^2 is an approximate expression for K E for particles moving at velocity much lower than velocity of light and that formulae is not applicable for photon. Moreover massless means rest mass is zero. Otherwise it has a mass of h*frequency/c^2
where h is plank's constant and c is velocity of light
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Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi |
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1 Jan 2008 19:46:30 IST
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KE = mc^2 - mo c^2 = hv ( mo = 0 ) E = KE = mc^2 = hv
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1 Jan 2008 19:56:01 IST
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photon is massless only when it is at rest.
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There is no better feeling in this world than being a winner! |
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1 Jan 2008 23:46:24 IST
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Hey dude,
photon has rest mass zero.
But any object as it gains speed also gains mass.
So in motion, it has some mass........
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"If you win, you shall not have to explain and if you lose, you wont be there to explain"
~ Adolph Hitler |
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20 Jan 2008 21:41:36 IST
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heyy dude
E=mc^2
use this for photon
u will get its mass
E=0 when M=0
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23 Jan 2008 18:44:33 IST
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i agree with you in this point of view.any object of rest mass 0 does not suffer relativistic variation. otherwise radio video signals will suffer relativistic variation.purav,francis,feynmann will certainly explain this and also my above question of debroglie wavelength.
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