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PLS HELP ON NOVEMEBER 1993 PAPER 1. Q19. ON DIFFRACTION OF WATER WAVES IN A WIDE GAP.PLS TELL ME IF THE ANSWER SHLD BE DIAGRAM"D" OR "C" .AS PER ME IT SHLD BE "C" BUT AS PER MARKSCHEM IT IS "D".PLS HELP!
do u have the 1995 to 2000 chemistry past papers and answers
Quote from: IGSTUDENT on June 08, 2009, 08:53:07 amPLS HELP ON NOVEMEBER 1993 PAPER 1. Q19. ON DIFFRACTION OF WATER WAVES IN A WIDE GAP.PLS TELL ME IF THE ANSWER SHLD BE DIAGRAM"D" OR "C" .AS PER ME IT SHLD BE "C" BUT AS PER MARKSCHEM IT IS "D".PLS HELP!it should be C.. the mark scheme is wrong. dw lol.
Quote from: IGSTUDENT on June 08, 2009, 08:53:07 amPLS HELP ON NOVEMEBER 1993 PAPER 1. Q19. ON DIFFRACTION OF WATER WAVES IN A WIDE GAP.PLS TELL ME IF THE ANSWER SHLD BE DIAGRAM"D" OR "C" .AS PER ME IT SHLD BE "C" BUT AS PER MARKSCHEM IT IS "D".PLS HELP!I think c too. The size of the gap is larger than the wavelength so diffraction happens only at the edges. I found all the papers here.
sorry nov.1997 question no.5
Think ratios and ignore the bus. Just take the passengers into accoount. For B the cog is 1/5 of the way from the bottom to top passengers but for A the cog is at the level of the bottom passengers.
I dont think you really need to worry about the ratio. Just because there is someone on the top the cog will be higher up
After doing past papers what should one do to prepare for this Paper? Any suggestions?