Flux entering in the given cone will be :

Let V_(1) be the volume of a given right circular cone with O as the centre of the base and A as its apex. Let V_(2) be the maximum volume of the right circular cone inscribed in the given cone whose apex is O and whose base is parallel to the base of the given cone. then the ratio V_(2)//V_(1) is -

If the radius of the base of a cone be doubled and height is left unchanged, then ratio of the volume of new cone to that of the original cone will be :

Prove that the radius of the right circular cylinder of greatest curved surface area which can be insribed in a given cone is half of that of the cone.

Prove that the radius of the right circular cylinder of greatest curved surface area which can be insribed in a given cone is half of that of the cone.

If the height of a cone be doubled and radius of base remains the same,then the ratio of the volume of the given cone to that of the second cone will be (a) 1:2quad (b) 2:1quad (c) 1:8quad (d) 8:1

If the height of a given cone be doubled and radius of the base remains the same, the ratio of the volume of the given cone of that of the second cone will be

If the electric flux entering and leaving an enclosed surface respectively is phi_1 and phi_2 , the electric charge inside the surface will be