Average life ofa radioactive sample is ...

Average life ofa radioactive sample is 4 ms Initially the total number of nuclie is `N_(0)` A charged capacitor of capacity `20 mu f` is connected across a resistor R. The value of R such that ratio of number of nuclei remaining to the charge on capacitor remains constant with time is

`100 Omega`

`200 Omega`

`300 Omega`

`400 Omega`

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The average life of a radioactive sample is 100 millisecond. A charged capacitor having capacitance 200 muF is connected across a resistance R. For what value of R, the ratio of charge on capacitor to the activity of the sample remains constant with time or independent of time.

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A radioactive sample has an average life of 30 ms and is decaying. A capacitor of capacitance 200 muF is first charged and later connected with resistor 'R'. If the ratio of charge on capacitor to the activity of radioactive sample is fixed with respect to time then the value of 'R' should be ______ Omega .

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