Two solid sphere of the same mass and same radius, one solid and other hollow. Which one have greater moment of inertia about a diameter?

Two wire having same length and same radius and given same load. One made of steel and other copper. If Young's modules of elasticity is twice that of other then calculate the potential energy stored in copper and steel.

Name two poisonous gases which can be prepared from chlorine gas.

Name one solid in which both Frenkel and Schottky defects occur?

A ring and a circular disc of different materials have equal masses and equal radii. Which one will have a larger moment of inertia about an axis passing through its centre of mass perpendicular to its plane?

Do liquids and gases also excert pressure? Does it depend on the area on which the force acts?

Fill in the blanks : The most comfortable distance at which one can read with a normal eye is about________ cm.

. Two physical quantities of which one is vector and the other is a scalar having the* same dimensional formula are: