Question

while performing an experiment, Archimedes principle, raj took a co rk of 5 cm cube volume and observed it weight as 20 gram using a spring balance if he imersed the cork completely in tap water then find what will be the weight of the cork now.

Answer 1

apparent weight=Actual weight(1-density of liquid/density of solid)
density of solid=20/5=4
now according to formula
W'=20(1-1/4)
this gives w'=15gm
note that density of liqued i. e water is 1gm/cm cube.
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