Draw a graph to show the variation in density of water with temperature in the temperature range from `0^(@)C` to `10^(@)C`.

Which of the following graph shows the variationi of density of water increase in temperature ?

Draw a graph showing the variation of decay rate with number of active nuclei.

Name the thermometer that can measure a temperature range from - 272^(@)C to 1600^(@)C .

Which graph represents the variation of surface tension with temperature over small temperature ranges for water?

Which of the following curve represent variation of density of water with temperature best-

Show on a graph, the variation of resistivity with temperature for a typical semiconductor.

Show variation of resistivity of copper as a function of temperature in a graph.

The bacteria that grow best at the temperature ranging from 45^@" to "65^@C are called

Most substances contract on freezing . However, water does not belong to this category. We know that water expands on freezing. Further , coefficient of volume expansion of water in the temperature range from 0^(@)C to 4^(@)C is negative and above 4^(@)C it is positive . This behaviour of water shapes the freezing of lakes as the atmospheric temperature goes down and it is still above 4^(@)C . If the atmospheric temperature is below 0^(@)C and ice begins to form at t = 0 , thickness of ice sheet formed up to a time 't' will be directly proprotional to

The total energy radiated from a block body source at constant temperature is collected for one minute and is used to heat a quantity of water. The temperature of water is found to increase from 20^(@)C to 20.5^(@)C . If the absolute temperature of the blackbody is doubled and the experiment is repeated with the same quantity of water of 20^(@)C , the temperature of water will be: