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संबंधित प्रश्न
Fill in the blank
The S.I. unit of temperature is ________.
Write down the temperature of the lower fixed point on the Fahrenheit scale.
Name two substances which contract on heating.
One liter of mercury at 100C is heated to 300C. Find the increase in the volume of mercury. The coefficient of cubical expansion of mercury is 1.8 X 10-4 0C-1.
Out of metals, liquids, and gases:
Which one is worst conductor of heat?
State whether true or false. If false, correct the statement.
One Celsius degree is an interval of 1K and zero degree Celsius is 273.15 K.
If a substance is heated or cooled, the change in mass of that substance is
______ determines the direction of the flow of heat.
For setting curd, a small amount of curd is added to warm milk. The microbes present in the curd help in setting if the temperature of the mixture remains approximately between 35°C to 40°C. At places, where room temperature remains much below the range, setting of curd becomes difficult. Suggest a way to set curd in such a situation.
Give reasons why –
gaps are left between railway tracks
