Solved papers for JEE Main & Advanced JEE Main Solved Paper-2015

done JEE Main Solved Paper-2015

• question_answer1) Distance of the centre of mass of a solid uniform cone from its vertex is ${{z}_{0}}$. If the radius of its base is R and its height is h then ${{z}_{0}}$is equal to : [JEE Main Solved Paper-2015 ]

A) $\frac{5h}{8}$

B) $\frac{3{{h}^{2}}}{8R}$

C)  $\frac{{{h}^{2}}}{8R}$

D) $\frac{3h}{4}$

• question_answer2) From a solid sphere of mass M and radius R a cube of maximum possible volume is cut. Moment of inertia of cube about an axis passing through its center and perpendicular to one of its faces is : [JEE Main Solved Paper-2015 ]

A) $\frac{4M{{R}^{2}}}{9\sqrt{3\pi }}$

B) $\frac{4M{{R}^{2}}}{3\sqrt{3\pi }}$

C)  $\frac{M{{R}^{2}}}{32\sqrt{2\pi }}$

D) $\frac{M{{R}^{2}}}{16\sqrt{2\pi }}$