Question

Why is the digital thermometer preferred over simple clinical thermometer?

• A. Mercury is toxic.
• B. The glass used is harmful.
• C. Bulb size of the clinical thermometer is big.
• D. Cost of the digital thermometer is less.

Answer 1

The correct option is A Mercury is toxic.

In a clinical thermometer, mercury is used as an expansion liquid. Mercury is a toxic substance. If the thermometer breaks, it is very difficult to get rid of it.
Therefore, digital thermometer preferred over simple clinical thermometer