Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

What is the challenge in building a controlled thermonuclear fusion reactor?

Options:

Fuel is not available

Radioactive waste produced by it is non- treateable.

Plasma cannot be contained at such high temperatures.

It is economically too expensive.

Correct Answer:

Plasma cannot be contained at such high temperatures.

Explanation:

The plasma so obtained it the process is of the temperature of about 108 K and no material yet known to mankind can withstand that temperature.