Question: who introduced the term photon to represent a packet of light energy
Answer: The same name was used earlier , by the American physicist and psychologist Leonard T. Troland , who coined the word in 1916 , in 1921 by the Irish physicist John Joly , in 1924 by the French physiologist René Wurmser ( 1890 - 1993 ) and in 1926 by the French physicist Frithiof Wolfers ( 1891 - 1971 ) .