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প্রথম ক্রম বিক্রিয়ার অর্ধায়ু t12 এর মান -
একটি দ্বিতীয় ক্রম বিক্রিয়ার অর্ধায়ুকাল (t12)   এবং বিক্রয়কের ঘনমাত্রা (C) এর মধ্যকার সম্পর্কটি হল-
একটি তেজস্ক্রিয় মৌলের ক্ষয় ধ্রুবক 0.02 yr-1 হলে- (i) T12 = 34.6yr (ii) τ = 50yr (iii) মৌলটির 14 অংশ অবশিষ্ট থাকবে 69.2 বছর পর নিচের কোনটি সঠিক?
Plasma half life t1/2 of a drug determines its
Plasma half life of a drug gives information about its
A man sells chocolates which are in the boxes. Only either full box or half a box of chocolates can be purchased from him. A customer comes and buys half the number of boxes which the seller had plus half box more. A second customer comes and purchases half the remaining number of boxes plus half a box. After this the seller is left with no chocolate boxes. How many chocolate boxes the seller had initially?
A drug that is highly effective in treating many types of infection can,at present,be obtained only from the bark of the ibora , a tree that is quite rare in the wild. It takes the bark of 5000 trees to make one kilogram of the drug. It follows, therefore, that continued production of the drug must inevitably lead to the ibore's extinction. Which of the following,if true, most seriously weakens the arguments above ?
Plasma half-life of drugs gives idea about:
The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then
The preferable dosing interval of a drug with an elimination half life of 6 hours could be