It is defined as close in temperature of substance
Invar (a special iron - nickel alloy) is used in pendulam instead of aluminium ,in order to decrease the expansivity.
not possible to change an area unit to linear unit
You can't convert that. You can convert from one linear unit to another linear unit, or from one square unit to another square unit, but not between linear units and square units.
A meter (metre) is a linear unit. there are no "non-linear" meters.
Linear expansivity is the increase in length per unit length per degree rise in temperature. While cubic expansivity is the increase in volume per unit in volume per degree rise in temperature.
The coefficient of cubical expansivity would normally be the cube of the coefficient of linear expansivity unless that coefficient is different in different directions for a material. In that case it would be the product of the linear coefficients in the different directions.
2*linear expansitivity
It is defined as close in temperature of substance
No. The expansivity is on a per unit basis just like the specific heat or density is.
Invar (a special iron - nickel alloy) is used in pendulam instead of aluminium ,in order to decrease the expansivity.
It is easier to open because the hot water is like fire. So the cap is not strong to hold the hot water. becouse the top expands befour the heat reaches the bottle which makes it a looser fit
You can test the bimetallic strip's expansivity by placing it in a hot or cold environment, such as a refrigerator or a Bunsen burner. The strip that contracts or expands more has a higher expansivity than the other.
not possible to change an area unit to linear unit
You can't convert that. You can convert from one linear unit to another linear unit, or from one square unit to another square unit, but not between linear units and square units.
You can't convert that. You can convert from one linear unit to another linear unit, or from one square unit to another square unit, but not between linear units and square units.
A meter (metre) is a linear unit. there are no "non-linear" meters.