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Please provide answer to this questn with explanation. 

Asked by vidyuti.varma 9th July 2016, 10:43 PM
Answered by Expert
Answer:
fraction numerator R a t e 1 over denominator R a t e 2 end fraction equals space fraction numerator k left square bracket A right square bracket subscript 1 superscript n over denominator k left square bracket A right square bracket subscript 2 superscript n end fraction
begin inline style fraction numerator 1 cross times 10 to the power of negative 4 end exponent over denominator 1.41 cross times 10 to the power of negative 4 end exponent end fraction end style equals fraction numerator left parenthesis 0.01 right parenthesis to the power of n over denominator left parenthesis 0.02 right parenthesis to the power of n end fraction
fraction numerator 1 over denominator 1.41 end fraction space equals space open parentheses 1 half close parentheses to the power of n
n equals space 1 half
r a t e space equals space minus fraction numerator d left square bracket A right square bracket over denominator d t end fraction space equals space k left square bracket A right square bracket to the power of 1 divided by 2 end exponent
H e n c e comma space o p t i o n space left parenthesis d right parenthesis space i s space t h e space c o r r e c t space o p t i o n.
Answered by Expert 11th July 2016, 12:35 PM
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