Physics

Which of the following rods of same material undergoes maximum elongation

Which of the following rods of same material undergoes maximum elongation when subjected to a given force? Options (a) l=1…

Water flows through a pipe. The area of cross-section at one place A₁=10 cm²,

Water flows through a pipe. The area of cross-section at one place A₁=10 cm², velocity of flows 1 m/s and…

A layer of glycerine of thickness 1 mm present between a large surface area of 0.1 m².

A layer of glycerine of thickness 1 mm present between a large surface area of 0.1 m². With what force…

A wire elongates by l mm when a load W is hanged from it. If the wire goes over

A wire elongates by l mm when a load W is hanged from it. If the wire goes over a…

A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown

A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown. The metal…

A polished metal plate has a rough and black-spot. It is heated to 1400 K

A polished metal plate has a rough and black-spot. It is heated to 1400 K and brought immediately in dark…

A pan is suspended from a steel wire. Weights are slowly put on the pan

A pan is suspended from a steel wire. Weights are slowly put on the pan and as the weight increases,…

If a small sphere is let fall vertically in a large quantity of still liquid of density

If a small sphere is let fall vertically in a large quantity of still liquid of density smaller than that…

The surface temperature of the sun which has maximum energy

The surface temperature of the sun which has maximum energy emission at 500 nm is 6000 K. The temperature of…

A body is under stress F and has Young’s modulus Y, then the energy

A body is under stress F and has Young's modulus Y, then the energy stored per unit volume equals to…