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ques  no 22 with detail explanation

Asked by Kajalmandal64 27th September 2017, 10:15 AM
Answered by Expert
Answer:
begin mathsize 12px style Given space that space
straight M space equals space 2.00 space gm space and space Δm space equals space 0.01 space gm space
straight V space equals space 5.0 space cm ³ space and space space ΔV space equals space 0.1 space cm ³ space
We space know space that space straight d space equals space fraction numerator straight M space over denominator straight V end fraction equals space fraction numerator 2 space space gm over denominator 5 space cm cubed end fraction space equals space 0.40 space space gm divided by cm ³
Now space we space know space that
fraction numerator Δd space over denominator straight d end fraction equals space Δm over straight m space plus space space ΔV over straight V
space space space space space space space space space equals space fraction numerator 0.01 over denominator 2 end fraction space space plus space space fraction numerator 0.1 over denominator 5 end fraction
space space space space space space space space space equals space 0.025
therefore space Δd space equals space 0.025 space cross times space 0.4 space
space space space space space space space space space space space space space space equals space 0.01 space space gm divided by cm ³ space space
therefore space straight d space equals space 0.40 space space plus-or-minus space space 0.01 space gm divided by cm ³ end style
Answered by Expert 27th September 2017, 11:13 AM
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