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…
5 years ago
Questions
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…
5 years ago
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…
5 years ago
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,…
5 years ago
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…
5 years ago
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…
5 years ago
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…
5 years ago
If a spring of spring constant k stretched by a length x under tension T, the energy
If a spring of spring constant k stretched by a length x under tension T, the energy stored is Options…
5 years ago
Three objects coloured black, gray and white can withstand hostile conditions upto 2800⁰C.
Three objects coloured black, gray and white can withstand hostile conditions upto 2800⁰C. These objects are thrown into a furnace…
5 years ago
A body of mass 120 kg and density 600 kg/m³ floats in water.
A body of mass 120 kg and density 600 kg/m³ floats in water. What additional mass could be added to…
5 years ago