If a plastic sphere floats in water (density = 1000kgm3) with 0.5 of its volume submerged, and floats in oil with 0.4 of its volume submerged the density of the oil is

3BYKE

4 years ago

the ans should be 1250, because the mass of the weight of plastic sphere is constant, so
volume of water displaced × density of water= volume of liquid displaced × density of liquid
0.5*1000=0.4*?
therefore ?= 500÷0.4=1250

Anzyumoh

4 years ago

the correct answer is C. how are u guys measuring relative density as volume in liquid/ volume in water. then equating it to find density?, it doesn't work. since mass ir weight displaced is equal, then we use DV(w)=DV(l), where w snd l mean water and liquid respectively

onomatopoeic

3 years ago

0.5/0.4 =1.25
1.25×1000=1250

onomatopoeic

3 years ago

the correct answer is C not A.the 0.4 is from the question. the volume of plastic sphere submerged in oil is 0.4

TemitayoWakanda

3 years ago

you're wrong Myschool.

The correct option is C

sterol

10 years ago

Where is the 0.4? Is it a magic number?

abdull d don

11 years ago

this is what I call manipulation in physics. the explanation is really incomprehensible

claire97

11 years ago

where did the 0.4 come from?

sotiking1

2 years ago

Since the formula of relative density is (ρ of substance /ρ of oil)
⟹ρ oil/ρ water
⟹(m/v oil)/(m/v water)
R.d⟹ v water/v oil