Density of substance

  • #1
174
0

Homework Statement


question.png


Homework Equations


Density = mass / volume

The Attempt at a Solution


the correct ans given is B.
Mass is constant. I calculated the volumes of each (the cube of the separation), found the difference in density and then divide the difference by the initial density. but the answer i obtained was 0.31, which is not even given here.
i verified my answer many times but there don't seem to be an error
 

Answers and Replies

  • #2
ehild
Homework Helper
15,526
1,901

Homework Statement


View attachment 81919

Homework Equations


Density = mass / volume

The Attempt at a Solution


the correct ans given is B.
Mass is constant. I calculated the volumes of each (the cube of the separation), found the difference in density and then divide the difference by the initial density. but the answer i obtained was 0.31, which is not even given here.
i verified my answer many times but there don't seem to be an error
You need the factor between the final density and the initial density,
 
  • #3
andrevdh
Homework Helper
2,128
116
Please show how you got to 0.31
 
  • #4
174
0
You need the factor between the final density and the initial density,
thanks. now i got the answer.

it was much easier than i thought
 

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