Which of the following helps to determine whether a body will be in thermal equilibrium with another body? thermal energy zeroth law of thermodynamics numerical scale first law of thermal thermodynamics 2A thermocouple works on the principle of -------------------- variation of e.m.f with temperature variation of volume with temperature variation of pressure with temperature variation of resistance with temperature 3The fundamental interval of a thermometric scale refers to --------------------- triple point of water difference between upper and lower fixed points ratio of the upper to the lower fixed point temperature of steam at standard atmospheric pressure 4The ice and steam points on a thermometer correspond to X and 50mm respectively. A temperature of 60degree celcius corresponds to 52mm on the thermometer. Calculate the value of X 4 mm 8 mm 10 mm 20 mm 5A railway line is laid with 10m length of rail on a day when the temperature is 2:50oC . There is a gap of 0.5cm between the rails. Find the temperatur
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