2462. Critical angle of light passing from glass to water is minimum for which colour?
Violet colour
2463. Mosses and Lichens are the characteristic vegetation of which region?
Tundra region
2464. Amerigo Vespucci reached the South American coast in?
1499
2465. On the 22nd of 1905 thousands of unarmed Russian workers marched to the Winter Palace of Czar in St.Peterburg demanding administrative reforms. But the army fired at the mob; Hundereds of workers died; thousands wounded. This incident is known as ?
Bloody Sunday
2466. IC chips for computers are usually made of which metal?
Silicon
2467. When is World Blood Donor Day; recognized by the UN is observed?
14-Jun-2017
2468. Nadir Shah invaded India during which reign?
Muhammed Shah
2469. Which was the most important kingdom after the Maury in the-Deccan and Central India?