When two unequal springs of same material are loaded with same load, which one will have the larger value of time period?

A disc is recast into hollow and thin cylinder of same radius, which will have larger moment of inertia.

There are two spheres of same material and same radius at same temperature but one being solid while the other hollow. Which sphere will expand more if they are heated to the same temperature .

Two sphere are of same mass and same external radius, one is solid and the other is hollow. Which one of them has larger moment of inertia about its diameter?

Two solid spheres of same mass are made of metals of different densities. Which one of them has a larger moment of inertia about a diameter?

A cricket bowler releases tha ball in two different ways giving it horizontal velocity and a small downward velocity and the speed v_s at the time of release is the same. Both are relased at a height H from the ground. Which one will have greater speed when the ball hits the ground? Neglect air resistance.

The Young's modulus for steel is much more than that for rubber. For the same longitudinal strain, which one will have greater tensile stress?

Three rods of same material and having the same cross-section are joined as shown in the figure.The tremperature of junction of three rods is : .

Will the time period of a spring change when vibrated with the same load on the surface of moon?

The voltage current variation of two metallic wires X and Y at constant temperature are a shown in the figure HQ. 7. Assuming that the wires have the same length and the same diameter explain which of two wires will have larger resistivity.

Two heating coils, one of fine wire and the other of thick wire of the same material and of the same length are connected in series and in parallel. Which of the following statement is correct ?