Question

A bulb thermometer gives an indoor temperature reading of 21°C. A digital thermometer in the same room gives a reading of 20.7°C. Which device is more precise? Explain

Answer 1

Digital thermometer is more precise.

Step-by-step explanation:

Digital thermometer is more precise because it is showing the temperature more precisely with 1 digit after decimal whereas the bulb temperature is measuring the temperature and giving the significant value.

Since the digital thermometer is measure temperature up to 1 digits of decimal, digital thermometer is more precise.

Answer 2

Digital thermometer is more precise

Step-by-step explanation:

As we know that precise reading is that reading where we can measure upto more numbers after decimal

so let say a student A measure a mass of object as

m = 23.5 g

while other student B measure same mass as

m = 23.486 g

then here student A measure the mass one digit after decimal while student B measure mass 3 digits after decimal

so here student B is more precise than student A

similarly here digital thermometer measure the temperature as 1 digit after decimal so it is more precise