Questions

A yellow element that stinks when burned is Sulphur.

IBM - International Business Machines Corporation has a nickname as Big Blue.

The wide gap between the aims of the French Revolution(equality in economic, social and political life) and the actual conditions in France after revolution created serious discontent among the people. It led to an attempt to overthrow the existing government in France with a view to building a society based on socialist ideas. This attempt, known as Babeuf's conspiracy, is an important event in the history of socialism.

      The conspiracy,as the name indicates, was the work of Noel Babeuf. He was born in 1760 and has participated in the French Revolution . He organised a secret society called the 'Society of the Equals'. 

Ans. Let radius of the base and height of the cone be ‘r’ & ‘h’ respectively.

Then volume of cone = πr2h/3 For cylinder, radius is reduced by 4 times = r/4 And,  height is increased by 8 folds = 8h Volume of cylinder = πR2H = π(r/4)2 (8h) = (16/8)πr2h = πr2h/2 Ratio of volume of cone to volume of cylinder = (πr2h/3) : (πr2h/2) Or, Ratio = 2 : 3.