Question

Density of water is 1000 kg/m3 and that of glass is 2500 kg/m3 . The speed of light will be maximum in.
glass
water
both

Answer 1

Answer:

Here, mass m=100kg, 

density ρ=500kgm−3

Volume of the body, V=ρm

                                      =500100=0.2m3

Weight of water displaced 

=Vρg

=0.2×103×g

=200gkgwt

Mass of water displaced =200kg

∴ the additional mass which can be added to body, so that body can sink 

=200−100=100kg.

Hope this helps you .

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