Question

Nuclear fusion is not possible in the laboratory because:

विकल्प

• it is extremely difficult to achieve a temperature of million degree celsius

• there is no material available to withstand such a high temperature.

• there is no way to use the energy, if fusion takes place.

• all of these.

Answer 1

All of these

Explanation:

Fusion needs a temperature of more than a million degrees Celsius; no material can withstand such a high temperature, and controlled fusion energy cannot yet be used in the laboratory. Therefore, all the given statements are correct.