 Hello friends, let's discuss the following question it says a capsule of medicine is in the shape of sphere of diameter 3.5 mm. How much medicine is needed to fill this capsule? That means we need to know the capacity of spherical capsule that means we need to know the volume of the capsule and we know that the volume of sphere is equal to 4 by 3 pi r q where r is the radius of sphere. So this is the key idea. Let us now move on to the solution. Now we are given that diameter of capsule is 3.5 mm and we know that radius of a sphere is half of the diameter that is radius of the capsule which is in the shape of sphere is equal to 3.5 upon 2 millimeter. Now we need to find the volume of the capsule which is in the shape of sphere. So the volume of capsule in which medicine to be filled is equal to 4 by 3 pi r q. Now r is 3.5 upon 2 millimeter. So let us substitute the value of r and pi in this formula. So the volume is equal to 4 by 3 into pi which is 22 upon 7 into 3.5 upon 2 q. Since the unit of radius is given to be in millimeter so the unit of volume will be cubic millimeter which is again equal to 4 by 3 into 22 upon 7 into 3.5 upon 2 into 3.5 upon 2 into 3.5 upon 2 cubic millimeters. Simplifying this we get the volume as 22.46 cubic millimeters approximately. Hence the answer is 22.46 cubic millimeters that is 22.46 cubic millimeters of medicine can be filled in the spherical capsule. So this completes the question why for now take care have a good day.