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In the diagram below, The ball hits the billiards table and returns back in the same direction. If the angle of hitting the wall is θ from the vertical. Find the minimum coefficient of friction between the wall and the ball. ...

Plot the graph of [y]= e[x] ...

This is a very famous problem of Mathematics (Not very much in IIT Syllabus though! but a very very interesting question of Limits!) A man Starts from his home to office. When he reaches half way he starts to go back to his h ...

Find the work done in pulling the ball from the situation shown in the figure to the topmost point of the wedge. The wedge is immovable. At the top there is a small pulley kind of a thing.. we dont have to worry about that. T ...

This is the IIT-JEE 1995 question. So U guys must have seen it. Not a very tough question. But it gives a lot of clarity in concepts and idea of how to apporoach such questions. A rectangular rigid fixed block has a long hori ...

A 5.00 g sample containing Fe3O4, Fe2O3 and an inert impure substance, is treated with excess KI solution in presence of dil H2SO4. The entire iron is converted into Fe2+ along with liberation of iodine. The resulting solutio ...

There are N points in a Plane. All the points are joined with each other. Note that the line segments are made. The lines are not extended on either sides. They meet at a lot of points. What is the number of points where thes ...