Born in Jerusalem during the Mandate era, Perah was educated at the Kadoorie Agricultural High School. He went on to study at the Teachers Seminary in Jerusalem, and was later awarded a Doctor of Philosophy in literature and education by Tel Aviv University.
In 1976 he became head of the Centre of Technology for Education and a senior lecturer at the university. Between 1976 and 1982 he also worked as a supervisor in the Center District for the Ministry of Education. In 1974 he joined the Liberal Party.
He was elected to the Knesset on the Likud list (then an alliance of the Liberal Party, Herut and other right-wing factions) in 1981.
He lost his seat in the 1984 elections, and became general manager of the Central School for Tourism the following year. He returned to the Knesset following the 1988 elections, but lost his seat again in 1992.
He died in 1998 at the age of 74.
He became chairman of the party"s Netanya branch, and a member of its central committee.
