Advertisements
Advertisements
Question
Answer the following in short.
Why is there a slight bend in the capillary tube of a clinical thermometer near the bulb?
Solution
A slight bend or kink in the capillary tube of the clinical thermometer near the bulb ensures that the mercury does not move back into the bulb when the thermometer is taken out of a person’s mouth for reading.
APPEARS IN
RELATED QUESTIONS
The hotness of an object is determined by its ______.
One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be ______.
An iron ball at 40°C is dropped in a mug containing water at 40°C.
The heat will ______.
Name the instrument used for measuring the temperature of a person. Draw its labelled neat diagram.
Doctor uses ______ thermometer to measure the human body temperature.
At room temperature Mercury is in ______ state.
Swathi kept a laboratory thermometer in hot water for some time and took it out to read the temperature. Ramani said it was a wrong way of measuring temperature. Do you agree with Ramani? Explain your answer.
The freezing point of alcohol is less than ______.
Shopkeepers selling ice blocks usually cover them with jute sacks. Explain why.
Go to a veterinary doctor (a doctor who treats animals). Discuss and find out the normal temperature of domestic animals and birds.
