Question
With reference to radioisotope thermoelectric generators (RTGs), consider the following statements:
1. RTGs are miniature fission reactors.
2. RTGs are used for powering the onboard system of spacecrafts.
3. RTGs can use Plutonium-238, which is a by-product of weapons development.
Which of the statements given below are correct?
Correct Answer — B
Explanation
RTGs generate power from radioactive decay, not fission — they’re used to run spacecraft systems and can rely on Plutonium-238, a byproduct of nuclear weapons work.