A substance is present in concentration of 2 mg % in the afferent arteriole and zero mg % in efferent. Thus true about the substance is

The half-life of a radioactive substance is 30 minutes, The time (in minutes) taken between 40 % decay and 85 % decay of the same radioactive substance is.

The half-life of a radioactive substance is 30 minutes, The time (in minutes) taken between 40 % decay and 85 % decay of the same radioactive substance is.