A rod whose length at, 23degree c is 10m is heated to take linear expanitivity as 0.000018kg
To solve this problem, we need to use the concept of linear expansion.
Linear expansion refers to the change in length of an object with temperature. In this case, the rod's length is changing as it is heated.
The linear expansivity (also known as coefficient of linear expansion) is denoted by the symbol α and is given as 0.000018 1/°C. This means that for every 1 degree Celsius change in temperature, the rod's length will change by 0.000018 times its original length.
The initial length of the rod at 23 degrees Celsius is given as 10m. Let's say we want to find the final length of the rod after it is heated to a certain temperature.
To find the final length, we can use the equation:
ΔL = α * L * ΔT
Where:
ΔL is the change in length
α is the linear expansivity
L is the initial length of the rod
ΔT is the change in temperature
In this case, we know the initial length (L) is 10m and the change in temperature (ΔT) is the difference between the final temperature and the initial temperature.
Let's calculate the change in length (ΔL) when the rod is heated to a specific temperature.