Which of the following is used as a cooling medium for the Large Hadron Collider (LHC) and the superconducting magnets in MRI scanners and NMR spectrometers?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. Helium.
Liquid helium is used as a cooling medium for the Large Hadron Collider (LHC) and the superconducting magnets in MRI scanners and NMR spectrometers. Liquid helium is ideal for this purpose because it can reach extremely low temperatures, close to absolute zero, which is necessary to maintain the superconducting state of the magnets. This cooling is crucial for the efficient functioning of these advanced scientific instruments, enabling them to achieve high precision in their respective fields.