Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
Ghost Of Highbury:
--- Quote from: Raywin on May 25, 2010, 03:13:32 pm ---Hey guys, i really dont understand the concept of reflective index. :/ can someone explain it to me? :)
--- End quote ---
any specific question?
holtadit:
A@di I'll leave it up to you now.
go ahead and help these people - I'm gonna take off :)
Raywin:
--- Quote from: A@di on May 25, 2010, 03:16:22 pm ---any specific question?
--- End quote ---
Oh not really but it might come for mcqs right? :/ i havent seen any so far but i cant really take a chance..
Ghost Of Highbury:
--- Quote from: Raywin on May 25, 2010, 03:18:07 pm ---Oh not really but it might come for mcqs right? :/ i havent seen any so far but i cant really take a chance..
--- End quote ---
theres not much to know abt it, just the formula
ALWAYS formula for refractive index depends from which medium it passes
eg .
From denser to rarer (glass to air) refractive index = sin r /sin i (i - angle of incidence, r - angle of reflection)
From rarer to denser (air to glass refractive index = sin i / sin r
the refractive index is never less than 1, so if ur getting the value of d refractive index < 1..u gotta check for errors..
Raywin:
--- Quote from: A@di on May 25, 2010, 03:23:20 pm ---theres not much to know abt it, just the formula
ALWAYS formula for refractive index depends from which medium it passes
eg .
From denser to rarer (glass to air) refractive index = sin r /sin i (i - angle of incidence, r - angle of reflection)
From rarer to denser (air to glass refractive index = sin i / sin r
the refractive index is never less than 1, so if ur getting the value of d refractive index < 1..u gotta check for errors..
--- End quote ---
Thanks a lot!! :D and another thing wht is the relationship between the resistance of a wire and its length and diameter?
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