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
Options: because of desiccation and mechanical damage to the tissues, because no photosynthesis takes place at such low temperature, because respiration ceases at such low temperature, because there is no transpiration
In India, rural incomes are generally lower than the urban incomes, which of the following reasons account for this? A large number of farmers are illiterate and know little about scientific agriculture Prices of primary products are lower than those of manufactured products Investment in agriculture has been low when compared to investment in industry
The main objective of multi-purpose river projects are
Options: extension of irrigation facilities by constructing dams to store surplus water during the rainy season, for release in summer, power generation by constructing hydro power stations, flood controls and making rivers navigable, All of the above