Two circular discs A and B have equal masses and uniform thickness but have densities `rho _1 and rho _2` such that `rho _1 > rho _2` , then their moments of inertia is

Two circular discs of same mass and thickness are made from metals having densities p_1 and p_2 respectively. The ratio of their moments of inertia about an axis passing through their centre is,

Two solid spheres(A and B) are made of metals,of different densities p_A and p_B respectively. If their masses are equal, the ratio of their moments of inertia ((I_B)/(I_A)) about their respective diameters is

Two loops P and Q are made from a uniform wire. The radii of P and Q are r_1 and r_2 respectively and their moments of inertia are I_1 and I_2 respectively. If I_1//I_2 = 4 , then r_2//r_1 equals

Two uniform circular discs A and B of radii R and 4R with thicknesses x and x//4 respectively, rotates about their axes passing through there centres and perpendicular to there planes. If M.I. of first disc is I_A and that of second disc is I_B then

Three liquids of equal masses are taken in three identical cubical vesses A,B and C Their densities are rho_A rho_B and rho_C respectively. But rho_A < rho_ B < rho_c The force exerted by the liquid in the base of the cubical vessel is

If at same temperature and pressure, the densities for two diatomic gases are respectively rho_1 and rho_2 , then the ratio of velocities of sound in these gases will be

v_1 and v_2 are the velocities of sound at the same temperature in two monoatomic gases of densities rho_1 and rho_2 respectively. If p_1//p_2=frac(1)(4) then the ratio of velocities v_1 and v_2 will be

Three particles of masses1kg, 2 kg and 3 kg are at distances 1 m, 2 m and 3 m from the axis of rotation. The moment of inertia of the system is

The escape velocities of the two planets, of densities rho_1 and rho_2 and having same radius, are v_1 and v_2 respectively. Then

The ratio of accelerations due to gravity g_1 : g_2 on the surfaces of two planets is 5 : 2 and the ratio of their respective average densities rho_1 : rho_2 is 2 : 1. what is the ratio of respective escape velocities v_1 : v_2 from the surface of the planets?