The half-life of a radioactive substance is 15 hours. If ...
The half-life of a radioactive substance is 15 hours. If at some instance, the sample has a mass of 512 g, calculate the time it will take 78 of the sample to decay
15 hours
30 hours
45 hours
60 hours
Correct answer is C
No explanation has been provided for this answer.
The fuse in an electric device is always connected to the ...
Why is it impossible for the lines of force of an electric field to cross one another? ...
The equation PxVyTz = constant in charles' law when...
It takes much longer to cook food in the hills than in the plains, because ...
The heat required to raise a mass of a substance through 1K is known as ...