Description : The commonly used thermometric substance is _____. (1) mineral oil (2) Alcohol (3) Mercury (4) Petrol
Last Answer : (3) Mercury Explanation: Thermometric liquids are used in thermometers to measure temperature. Mercury and alcohol are common thermometric liquids.
Description : In cold countries alcohol is preferred to mercury as a thermometric liquid because (a) alcohol is a better conductor of heat (b) alcohol can be coloured and its level seen easily (c) alcohol has a lower freezing point than mercury (d) alcohol is cheaper than mercury
Last Answer : Ans:(c)
Description : Mercury is commonly used as a thermometric fluid rather than water because (1) specific heat of mercury is less than water (2) specific heat of mercury is more than water (3) mercury has greater visibility than water (4) density of mercury is more than the water
Last Answer : (3) mercury has greater visibility than water Explanation: One special kind of mercury-inglass thermometer, called a maximum thermometer, works by having a constriction in the neck close to the bulb.
Description : Horizontal distances obtained by thermometric observations (A) Require slope correction (B) Require tension correction (C) Require slope and tension corrections (D) Do not require slope and tension corrections
Last Answer : (D) Do not require slope and tension corrections