531. X210 has half life of 5 day. What is the time taken for seven-eights of sample of X210 to decay?
15 days
532. In which year; UN General Assembly terminated South Africa’s mandate over Namibia?
1966
533. The Hindustan steel Ltd. Durgapur has been set up with the help of which country?
United kingdom
534. The Gulf War (1991) was fought between the US led multinational forces and Iraq to expel Iraqi troops from Kuwait. Its code name was ?
Operation Desert Storm
535. In Krishnadevaraya"s court, who were Ashtadiggajas?
Eight great poets of his court
536. Who is the author of “All the Prime Minister's Men”?
. Janardhan Thakur
537. Who is the author of The Ancient Mariner?
S.T. Coleridge
538. Howmany of Banks were nationalised since 1969?
20
539. Highest Leaning Tower (World)?
Leaning Tower; Pisa (Italy)
540. Who is the author of “The Pathology of Corruption”?
S.S. Gill