Which Royal Society medal did Faraday receive in both 1832 and 1838?

Faraday received the Copley Medal in both 1832 and 1838.

The Copley Medal is the Royal Society’s oldest surviving scientific award and recognizes outstanding research. Faraday first received it in 1832 for his discovery of magneto-electricity, work described in his experimental researches on electricity. He received it again in 1838 for his researches in specific electrical induction.

These two awards reflected different stages of Faraday’s electrical investigations. His 1830s experiments showed that magnetism and electricity were closely linked, while his work on induction helped clarify how electric effects could be produced and transmitted without direct contact between charged bodies.

The other options are also genuine Royal Society medals, which makes this question easy to muddle. The Bakerian Medal is chiefly associated with physics, the Rumford Medal with thermal or optical research, and the Royal Medal recognizes important scientific contributions. None is the medal Faraday won in both of those years.

Faraday’s repeated Copley recognition was especially notable because the medal was among the most prestigious scientific honors available in nineteenth-century Britain.