Answers

2016-02-16T19:17:09+05:30
RELATIVE DENSITY OF A SUBSTANCE IS DEFINED AS THE RATIO OF ITS DENSITY TO THAT OF WATER AT 4 degree C...RELATIVE DENSITY HAS NO UNIT ,SINCE IT IS A RATIO OF TWO SIMILAR QUANTITIES......

THE GREATEST PRESSURE : 10000Pa
THE LEAST PRESSURE :4000Pa

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in the pressure answer i took gravity as 10m/s