Deputy Superintendent Quiz-20

Al‑Khwarizmi’s works introduced the Hindu–Arabic numeral system, including zero, to the Islamic world and later to Europe.

Al‑Biruni noted that light travels much faster than sound by timing distant events like cannon fire.

Caliph Umar ibn al‑Khattab (RA) established standardized prison regulations, marking early Islamic penal reforms.

The British formalized prison administration in Punjab with regulations and institutions starting in 1854.

Central Jail Rawalpindi (established 1854) is recognized as the oldest prison facility in Punjab.

There is no clear historical record that any of these figures “introduced” a general point (decimal) notation; modern decimal points evolved in Europe.

The earliest post‑1947 IG Prisons Punjab was Col. Mohammad Yusuf, not among the listed options.

Logarithms were developed by John Napier in the early 17th century, not by a medieval Muslim scholar.

Under Pakistani law, executions are carried out at 6 AM on the appointed date.

Known in the West as “Geber,” Jabir‑bin‑Hayyan wrote foundational texts on alchemy and early chemical processes.