Heat Test - 1

Mercury is filled in a glass flask of volume 500 cu cm at 0°C. The coefficient of cubical expansion of mercury is 182 ´ l0^-6 /°C and that of glass is 30 ´ l0^-6 /°C. If the temperature of the flask is increased to 100°C, then the amount of Mercury that has over flown out is

In a thermometer the boiling and freezing points are marked as 125° and 25°. It reads 75°. Then the corresponding Celsius scale is

If two identical spheres of same radii R out of which one is hollow containing air and the other is solid are heated through the same temperature range, then the change in dimensions of the spheres will be

The difference between the two temperatures in Celsius scale is 100°. Then the difference between their corresponding Fahrenheit scales is

If the readings on Celsius and Fahrenheit scale of thermometers read the same numerical value when placed on a substance, then the temperature of the substance measured is

A glass vessel of volume 600 cu cm at 20°C contains certain amount of Mercury. The amount of Mercury that it should contain at 20°C  such that the empty space in the container is same for at all temperatures is [Coefficient of linear expansion of glass is 0.8 x 10^-5/°C and the coefficient of cubical expansion of Mercury is 18 x 10^-5/°C]

The length of a glass rod is found to be 1m on a meter scale made of Copper when both were at 50°C. The copper scale is correct at 0°C. If the coefficient of linear expansion of Copper and glass are 1.7 x 10^-5 /°C and 0.8 x 10^-5 /°C, then the length of the glass rod at 0°C is