Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?
Options: 1.8 km, 0.15 km, 2.2 km, 0.20 km, 2.8 km, 0.25 km, 3.3 km, 0.30 km
What is the purpose of 'United Nations Conference on Trade and Development' (UNCTAD)?
Options: Promotes International Trade with a view to accelerate economic growth of developing countries, Promotes International Monetary co-operation & expansion of International Trade, Set rules for World Trade, None of the above
Options: slowing down of economic activity over a limited period, period during which unemployment may rise and demand and output may fall, leading to slump in trade, period that results from accumulation of unsold goods, owing to fall in demand, All of the above
The major geological events of the Palaeozoic era include
Options: Caledonian mountain rise, life comes ashore, Appalachians and Central European mountains come up, both (a) and (b), None of the above
Options: when the bowler bowls out three batsman with three successive balls, when the batsman intercepts the ball with his leg or any part of his body between the wicket, when the batsman, while hitting the ball, strikes his own wicket with his bat or body and is declared out, None of the above
The rate of infiltration normally declines rapidly during the early part of rainstorm event and reaches a constant value after several hours of rainfall. The factors responsible for this phenomenon are the filling of fine soil pores with water, which reduces capillary forces moistened soil, clay particles to swell and reduce the size of pores raindrop impact breaking up with soil clumps, splashing fine particles into pores