Advertisements
Advertisements
Question
Advertisements
Solution
Lower fixed point = 10°C
Upper fixed point =130°C
Range of thermometer= 130°C - 10°C
= 120°C
No of divisions = 100
So least count = 120/100 = 1.2°C
On actual thermometer 40°C would have 40 divisions
So, on this thermometer, it would show
= 40 x LC = 48°C
APPEARS IN
RELATED QUESTIONS
Give reason for Sea water does not freeze at 0°C.
Observe the following graph. Considering the change in volume of water as its temperature is raised from 0°C, discuss the difference in the behaviour of water and other substances. What is this behaviour of water called?

On a winter day the temperature of the tap water is 20°C whereas the room temperature is 5°C. Water is stored in a tank of capacity 0.5 m3 for household use. If it were possible to use the heat liberated by the water to lift a 10 kg mass vertically, how high can it be lifted as the water comes to the room temperature? Take g = 10 m s−2.
Density of water is maximum at :
Explain, why are the exposed water pipes lagged with straw during severe winter?
What is the criterion of choosing the two metals for a bimetal strip?
In cold regions, in winter the pipes for water supply break.
Observe the following diagram and write the answers to the questions given below.

- Which process does the graph represent?
- What is the range of temperature responsible for the behaviour?
A graph between the volume and temperature of water is shown. Explain the anomalous behaviour of water.

