Qualification > Sciences
Physics Discussion HERE ONLY!
MaNa:
--- Quote from: MR.BooMBastiC on June 05, 2009, 12:49:58 pm ---CRITICAL ANGLE WAS 42 I CHECKED IT WITH DA PROTRACTOR
--- End quote ---
:-\ UGH I HOPE MY PEN HAD A MAGIC INK
which can change all the answer to corect
i really hope the threshold isss doowwwwn
Inshllah InshAllah Inshallah:D
IGCSE nightmare:
The fraction question .. I got 1\2! I first wrote it as 1\8 but then I recognized that wind becomes slower when it is heavier.
But that makes sense if the speed is half less then the mass is then more which makes the output half less. [ Blowing slower , less output ]
omar777:
guys just by looking at the ray you can see it is bending away the from the normal... its impossible that the answer is in the '20s' it was 58 point something :)
and i think the critical angle was a bit more than 42 because when the incident ray was 42, the refracted ray was a bit less than 90... so i wrote 43 :-\
annie_angel:
i rote 90 cuz whn da incident ray goes in tht way...td c-angle goes 90
MR.BooMBastiC:
CRITICAL ANGLE.......CAN NEVER BE 90
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