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Physics Discussion HERE ONLY!

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girl_92:

--- Quote from: Bani on June 05, 2009, 05:07:20 pm ---
--- Quote from: notty_me on June 05, 2009, 05:04:04 pm ---dus any1 remember da Al & steel que were of how many marks??????

and wich was da denser medium??????????

--- End quote ---

I put the medium A, because the ray goes AWAY FROM THE NORMAL when it passess from more dense to less dense(from medium A to air)
I hope its right :-\

--- End quote ---
yep even i wrote da same

esso:
the expansion thing is 3-4 mrks

Bani:

--- Quote from: esso on June 05, 2009, 05:08:58 pm ---
--- Quote from: notty_me on June 05, 2009, 05:04:04 pm ---dus any1 remember da Al & steel que were of how many marks??????


3 mrks


--- End quote ---

what IS the right answer??? cuz some say its Aluminium and some say its Steel  :-\
--- End quote ---

Bani:

--- Quote from: madee92 on June 05, 2009, 05:07:59 pm ---
--- Quote from: Bani on June 05, 2009, 05:07:20 pm ---
--- Quote from: notty_me on June 05, 2009, 05:04:04 pm ---dus any1 remember da Al & steel que were of how many marks??????

and wich was da denser medium??????????

--- End quote ---

I put the medium A, because the ray goes AWAY FROM THE NORMAL when it passess from more dense to less dense(from medium A to air)
I hope its right :-\

--- End quote ---
yep even i wrote da same

--- End quote ---

Alhamdulillah!!!!! I feel good :)

esso:
critical angle was 42 right ???

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