Question

Hello everyone! I have a doubt. I will make sure to follow you and mark you as the branliest if you answer it correct. Why is it advised not to hold a thermometer by its bulb? I will also follow all those who answer it please please please answer it right now cause I need it urgently! !!!!!!!!!!!!!

Answer 1

In a thermometer mercury is used to determine the temperature of the body. The Mercury expands on heating. We are warm blooded animals . So our body is hot. If we touch the bulb of thermometer the Mercury expands because of the hotness of our body.Then we won't get correct temperature reading.
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Answer 2

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It is advised not to hold the thermometer by its bulb because the level of Mercury increases due to our body temperature and effect the actual reading.