Question

can you solve this question please

Answer 1

42.)Kink  in  the Mercury thermometer helps to prevents the falling of mercury present in capillary  tube into bulb. It ensures that the user takes the correct reading of temperature.
That's  the reason a person before taking  a new reading must give a sudden shake to the clinical thermometer so that the mercury level comes to normal .
Hence Kink in mercury thermometer plays a important  role without which appropriate reading of temperature is not possible.
43.) Temperature is a measure of the warmth or coldness of an object or substance with reference to some standard value. Thermometer is used to measure temperature.

44.) Similarities:^Bulbs contain mercury.
^Glass tubes are long, narrow and uniform.

Differences:

^Clinical thermometer is used to measure body temperature however laboratory thermometer is not used for the purpose of measuring body temperature.
^The temperature range of clinical thermometers is 35°C-42°C and that of laboratory thermometers is -10°C-110°C.
^The least count of both the thermometers is different.