Answers The echo of a sounder from the bottom of an ocean is heard 2.5 seconds… The echo of a sounder from the bottom of an ocean is heard 2.5 seconds later. If the speed of sound in water is 1,400ms-1, the depth of the ocean is A. 1,750m B. 3,500m C. 1,400m D. 2,800m E. 2,100m Correct Answer: Option A Explanation
Answers A ladder resting on a vertical wall makes an angles whose tangent is 2.4 with… A ladder resting on a vertical wall makes an angles whose tangent is 2.4 with the ground. If… Read More
Answers A person with blood group, O can be given blood from persons who have blood… A person with blood group, O can be given blood from persons who have blood belonging to A.… Read More
Answers Consider the reaction represented by the following equation: H2(g) + 12(g) → 2HI(g). The number… Consider the reaction represented by the following equation: H2(g) + 12(g) → 2HI(g). The number of effective collisions… Read More
Answers This question is based on William Golding’s Lord of the Flies. At one point in… This question is based on William Golding’s Lord of the Flies. At one point in the novel, Jack… Read More
Answers Which of the following groups consists of only micro-nutrients? Which of the following groups consists of only micro-nutrients? A. Molybdenum, sulphur and copper B. Boron, Zinc and… Read More