The ratio of 20 cm to 2 m is ____

The ratio of the sums of m and n terms of an A.P is m^(2): n^(2) , then the ratio of the m^(th) and n^(th) terms is

The ratio of the sums of m and n terms of an A.P. is m^2 : n^2. Show that the ratio of m^(th) and n^(th) term is (2m-1) : (2n -1) .

The sides of rectangular block are 2cm, 3cm and 4 cm . The ratio of the maximum to minimum resistance between its parallel faces is

The base and height of the triangle are in the ratio of 3:2 and its area is 108cm^2 . Find its base and height.

Two bodies A, B of masses m_(1), m_(2) are knotted to a mass less string at different points rotated along concentric circles in horizontal plane. The distances of A.B from common centre are 50cm, 1m. If the tensions in the string between centre to A and A to B are in the ratio 5:4, then the ratio of m_(1) to m_(2) is

A copper plate of 20 cm x 10 cm is to be plated with silver of 1 mm thickness on both the sides. Number of moles of silver required for plating is (density of silver =10.8 g m /cc)____________

Under similar conditions, 390 cm^# of gas A of molar mass M_A and 130 cm^3 of gas B of molar mass M_B diffuesed out through a porous container i nthe time ratio of 2:1. The ratio of M_A to M_B is

A metal block has lengths 50 cm, breadth 30cm and thickness 20cm. When current passes through it parallel to its length and parallel to its breadth, the ratio of maximum to minimum resistance of that block is