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![[Post New]](/templates/default/images/icon_minipost_new.gif) 11 Sep 2007 18:32:33 IST
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What is the formula for longitudinal magnification in case of convex lenses?
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11 Sep 2007 18:35:15 IST
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What is this longitudnal magnification ?????
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11 Sep 2007 19:01:08 IST
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When an object is placed along the axis, then what will be its size after refraction?
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The quality of a person's life is in direct proportion to their commitment to excellence, regardless of their chosen field of endeavor.
It is during our darkest moments that we must focus to see the light.
Check out my blog at:
http://tarinbansal.blogspot.com/
Posts:
Can marks really judge a student??
Some myths about Chemical Engineering.
(A must see for every student)
Back to goiit, this time with Baby Veerappan. :D |
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12 Sep 2007 18:36:55 IST
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Yaar yeh experts kyon baithe hain goiit pe jab inhe reply hi nahi dena hota hai. Yeh Ya to sirf easy questions ka reply dete hain or they don't reply at all.
Its been 2 days since I have posted this question and no reply yet???????
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The quality of a person's life is in direct proportion to their commitment to excellence, regardless of their chosen field of endeavor.
It is during our darkest moments that we must focus to see the light.
Check out my blog at:
http://tarinbansal.blogspot.com/
Posts:
Can marks really judge a student??
Some myths about Chemical Engineering.
(A must see for every student)
Back to goiit, this time with Baby Veerappan. :D |
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17 Sep 2007 02:04:53 IST
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Tarin sorry for the delay.
Well tarin longitudnal magnification is not as straight forwrd thing as normal magnification and there is no srtandard formula as such. (It can be tricky at times. Consider a object kept on the focus. A part of it will form virtual image and other will form a real image. How will you define size of this image.) But still we can derive some result if we want when you get either complete real or complete virtual image of an object.)
Consider an object of size O kept at some distance u from the mirror. (Let u be the distance of midpoint of the object).
Tak u1=u+d/2 and u2=u-d/2.
for u1 and u2 find v1 and v2 with lens formulae.
if they are of same sign then
magnification is (v1-v2)/(u1-u2)
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Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi |
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