Graphite is used in nuclear reactors ______?

گریفائٹ جوہری ری ایکٹرز _____ میں استعمال ہوتا ہے؟

As a fuel

As a lubricant

For reducing the velocity of neutrons

None of these

Graphite is used in nuclear reactors as a neutron moderator.

It slows down high-energy neutrons to thermal energies to maintain the chain reaction efficiently.