two spheres of the same metal weigh 1kg and 7kg The radius of th ...
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same metal means same density ,
but we know,
density = mass/volume
e.g
M1/V1 = M2/V2
M1/M2 =V1/V2
1/7 = 4/3πR1^3/4/3πR2^3
1/7 = (R1/R2)^3
R1/R2 =(1/7)^1/3
but we know,
density = mass/volume
e.g
M1/V1 = M2/V2
M1/M2 =V1/V2
1/7 = 4/3πR1^3/4/3πR2^3
1/7 = (R1/R2)^3
R1/R2 =(1/7)^1/3
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