………………. invented the ‘Phalaka Yantra’ which consisted of a rectangular board with a pin and index arm, which was used to determine the time from the sun’s position.

Related MCQs

• The cross-staff known as the ‘Yasti-Yantra’ was used by……………….
• Mahendra Suri of 14th century wrote the astronomical work called ‘Yantra Raja’ in verse in……………….
• Mahendra Suri, the court astronomer of ………………mentions about an astrolabe, a combination of two semi-circular board instrument giving rise to a ‘scissor instrument’.
• The Samurai class was the land-owning class in …………..and they enjoyed the highest position in the social ladder.
• …………………..’s two most important works in medicine are the ‘Book of Healing’ and the ‘Canon of Medicine’, both used as the standard medicinal texts in both the Arab world and Europe for a long time.
• In the later period the …………………emperors implemented the ‘Feng-Chien’ system by which trusted officials and imperial relatives were appointed on a permanent basis in the strategic areas of the empire, which in course of time became hereditary.
• After the fall of the Sung dynasty China was over-run by the ……………..for the next hundred years, who at this time had dominated many parts of Asia and Europe.
• The Caliphate rule in the Islamic world stretches over a vast span of time from 632 to 1924, from the death of the Prophet to the year when Mustaffa Kamal Pasha of …………….officially abolished the last Caliphate, the Ottoman Empire and founded the Republic of Turkey.
• By 800 AD the economy of medieval Europe began to more stabilize as by that time …………….had conquered southern Mediterranean including Spain, Sicily and southern Italy.
• ……………..may be considered as the first writer who has made a tri-partite division to the world history for the first time.