The correct options are:
(b) Initial rate of decay of A is twice the initial rate of decay of B and 
(d) Initial rate of decay of B is the same as the rate of decay of A at 
and 
Samples of two radioactive nuclides A and B are taken. 
and 
are the disintegration constants of A and B respectively. In which of the following cases, the two samples can simultaneously have the same decay rate at any time?
(a) Initial rate of decay of A is twice the initial rate of decay of B and
(b) Initial rate of decay of A is twice the initial rate of decay of B and
(c) Initial rate of decay of B is twice the initial rate of decay of A and
(d) Initial rate of decay of B is the same as the rate of decay of A at and 
and are the disintegration constants of A and B respectively. In which of the following cases, the two samples can simultaneously have the same decay rate at any time?(a) Initial rate of decay of A is twice the initial rate of decay of B and
(b) Initial rate of decay of A is twice the initial rate of decay of B and
(c) Initial rate of decay of B is twice the initial rate of decay of A and
(d) Initial rate of decay of B is the same as the rate of decay of A at
and Samples of two radioactive nuclides A and B are taken. and are the disintegration constants of A and B respectively. In which of the following cases, the two samples can simultaneously have the same decay rate at any time?
(a) Initial rate of decay of A is twice the initial rate of decay of B and
(b) Initial rate of decay of A is twice the initial rate of decay of B and
(c) Initial rate of decay of B is twice the initial rate of decay of A and
(d) Initial rate of decay of B is the same as the rate of decay of A at and
and are the disintegration constants of A and B respectively. In which of the following cases, the two samples can simultaneously have the same decay rate at any time?(a) Initial rate of decay of A is twice the initial rate of decay of B and
(b) Initial rate of decay of A is twice the initial rate of decay of B and
(c) Initial rate of decay of B is twice the initial rate of decay of A and
(d) Initial rate of decay of B is the same as the rate of decay of A at
and