Question

The order of temperature required for thermonuclear fusion to take place is:

• A. ${10}^{4}K$
• B. ${10}^{5}K$
• C. ${10}^{6}K$
• D. ${10}^{7}K$

Answer 1

The correct option is D

${10}^{7}K$

Very high temperatures are required to overcome the electrical repulsion that occurs between protons(Coulombic forces). The temperature required is in the order of ${10}^{7}K$.

The temperature at the core of the sun where fusion takes place is 14 million Kelvin.