A substance has half of 3 min. After 6 min, the count rate was observed to be 400. What was its count rate at zero time?
The time rate of increase in velocity is called
Which of the following quantities is a vector?
In an elastic collision, momentum is conserved as well as well as?
The induced current in a coil always flows in a direction so as to oppose the change that causes it. This statement is known as