Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
Ghost Of Highbury:
--- Quote from: Dana on May 26, 2010, 09:48:04 am ---In Nov 93 number 19
http://www.freeexampapers.us/IGCSE/Physics/CIE/1993%20Nov/0625_w93_qp_01.pdf
It says which diagram shows the diffraction of a wave going through a wide gap.
Isn't it C? The one that shows the waves slightly bent at the ends, and not D as the mark scheme says, which shows perfectly curved waves?? ???
--- End quote ---
Should be C. Incorrect MS?
haris94:
--- Quote from: Dana on May 26, 2010, 09:48:04 am ---In Nov 93 number 19
http://www.freeexampapers.us/IGCSE/Physics/CIE/1993%20Nov/0625_w93_qp_01.pdf
It says which diagram shows the diffraction of a wave going through a wide gap.
Isn't it C? The one that shows the waves slightly bent at the ends, and not D as the mark scheme says, which shows perfectly curved waves?? ???
--- End quote ---
i think its C
the gap is wide
Dana:
--- Quote from: A@di on May 26, 2010, 09:50:37 am ---Should be C. Incorrect MS?
--- End quote ---
I dno :/ how can I tell?
8T:
--- Quote from: haris94 on May 26, 2010, 09:34:14 am ---u should get 6.4*10^5 with converting to m3 and without converting
ms must be wrong
--- End quote ---
So can u do the conversion and show me please because i keep getting 6.4 ??
In both with and without???
Thanks
Ivo:
--- Quote from: A@di on May 26, 2010, 09:50:37 am ---Should be C. Incorrect MS?
--- End quote ---
I agree. The gap is wider than the wavelength, so yeah totally agree it's C. It's not the proper mark scheme anyway.
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