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
Physics
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
If h is the height of the capillary rise and r be the radius of capillary tube,
If h is the height of the capillary rise and r be the radius of capillary tube, then which of…
5 years ago
Ice is wrapped in black and white cloth. In which cases more ice will melt
Ice is wrapped in black and white cloth. In which cases more ice will melt Options (a) White (b) Black…
5 years ago
ln a surrounding medium of temperature 10⁰C a body takes 7 min for a fall
ln a surrounding medium of temperature 10⁰C a body takes 7 min for a fall of temperature from 60⁰C to…
5 years ago
When the temperature increases, the viscocity of
When the temperature increases, the viscocity of Options (a) Gases decreases and liquid increases (b) Gases increases and liquids decreases…
5 years ago
In which of the following heat loss is primarily not due to convection?
In which of the following heat loss is primarily not due to convection? Options (a) boiling of water (b) land…
5 years ago
Angle of contact of a liquid with a solid depends on
Angle of contact of a liquid with a solid depends on Options (a) Solid only (b) Liquid only (c) Both…
5 years ago
A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained at temperature T then the energy…
5 years ago