1.

If we deuterium nuclei get close enough to each other, the attraction of the strong nuclear force will fuse them to make an isotope of helium. This process releases a huge amount of energy. The range of nuclear force is 10^(-15) m. This is the principle behind the nuclear fusion reactor. The deuterium nuclei moves to fast that, it is not possible to contain them by physical walls. Therefore they are confined magnetically (Assume coulomb law to hold even at 10^(-18) m) Which of the following strength of magnetic field will make deuterium nuclei moving at minimum possible speed in pervious question, to be confined in a circle of diameter 2.5m

Answer»

122mT
160M
139mT
212mT

ANSWER :C


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