Questions

The number of free electrons in the outermost shell of carbon atoms in diamand is

How are elements arranged in the Modern Periodic Table?

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

This is the arresting and dominant fact about modern social discussion; that the quarrel is __________ merely about the difficulties, but about the aim. We agree about the evil; it is about the good that we should tear each ____________ eyes out. We all admit that a lazy aristocracy is a bad thing. We should not by ________ means all admit that an active aristocracy would be a good thing. We all feel angry with an irreligious priesthood; but some of us would _______ mad with disgust at a really religious one. Everyone is indignant if our army is weak, _____________ the people who would be even more indignant if it were strong.

Find the potential energy gained by a body of mass 50 kg, if it is raised by 10m. (use g = 10 m/s2)

The speed of the light is maximum in

An object weighing 20 kg is raised through a height of 2 m. What will be the work done by the force of gravity in this process?

If a ball is thrown vertically upwards with a velocity of 40 m/s, then what will be the magnitude of its displacement after 6 s?

Around how much percent of earth's surface is covered with water?