The ratio of thermal conductivity of two rods is `4 : 3`. The radii & thermal resistances of the two rods are-equal. Calculate the ratio of their length.

The ratio of the radii of two circular conducting loops is 1 :2 . If the magnetic moments are equal , then the ratio of the currents flowing through them is x:1 . Find x .

If the ratio of the volumes of two solid spheres is 8 : 27 then the ratio of their radii is

The ratio of the lengths of two metallic rods is 2:3 and the ratio of the coefficients of linear expansion of their materials is 4:3. The ratio of their linear expanions for the same rise in temperature is

The ratio of the volumes of two right circular cones is 1:4 and the ratio of their lengths of radii of the bases is 4:5 then the ratio of their heights is

The ratio of the volumes of two spherers is 216 : 125. If the sum of the radii of the two sphere be 22 cm , then find the radii pf the spheres.

The ratio of the masses of two planets is 2 : 3 and the ratio of their radii is 3:2 The ratio of acceleration due to gravity on these two planets is

If the ratio of the volume of two right circular cones is 1 : 4 and the ratio of radii of their bases is 4 : 5 then the ratio of their heights is ____

The ratio of the length of a rod and its shadow is sqrt3:1: . The angle of elevation of the sun is

The ratio of the radii of two spheres made of the same material 1:4. The ratio of their thermal capacities is

Thermal resistivity is the____ of thermal conductivity.