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Home / Doubts and Solutions/ANDHRA PRADESH/Class 9/Physics

a solid sphere has radius 2cm and mass 0.05kg. what is relative desity of sphere?

Asked by Arun 11th January 2016, 11:22 AM
Answered by Expert
Answer:

Hi Arun,

Given:

Mass, m = 0.05 kg = 50 g

Radius, r = 2 cm

begin mathsize 14px style Volume equals 4 over 3 πr cubed equals 4 over 3 cross times 22 over 7 cross times left parenthesis 2 right parenthesis cubed Volume equals 4 over 3 πr cubed equals 4 over 3 cross times 22 over 7 cross times 8 equals 33.52 space cm cubed Density equals Mass over Volume equals fraction numerator 50 over denominator 33.52 end fraction equals 1.49 space straight g divided by cm cubed Density space of space water equals 1 space straight g divided by cm cubed Relative space density equals fraction numerator Density space of space the space material over denominator Density space of space water end fraction equals fraction numerator 1.49 over denominator 1 end fraction equals 1.49 end style

Answered by Expert 11th January 2016, 6:19 PM
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