Question

Reena went to a doctor for routine check up of her mother. She observes doctor was taking temperature of patients.

Satisfy Reena’s following queries:

1. Why does doctor dip the thermometer in a liquid before use?

2. Why the thermometer is kept under the tonque?

3. What is the shiny material present in thermometer?
this is full question please tell me​

Answer 1

Answer:

q2. The thermometer is kept beneath the tongue for accurate measurement of temperature.

q3. The material which is present in the thermometer is 'mercury' in its liquid form. Mercury is used in thermometers because it is very sensitive to heat and temperature differences.

Answer 2

Answer:

the liquid is known as antiseptic doctors clean thermometer before use to prevent bacteria because germs differ on the temperature