00:01
Hello, in the question it is given, the density of solid at 0 degrees celsius and 500 degrees celsius is in the ratio 1 .07 each to 1 .1.
00:12
That is at 0 degrees celsius and at 500 degrees celsius.
00:18
And we need to calculate the coefficient of linear expansion of the solid.
00:22
So alpha value we need to calculate.
00:24
That is coefficient of linear expansion value we need to find out.
00:35
So let us consider density at 500 degrees celsius as row 500, that is density at 500 degrees celsius and row 0 is nothing but density 0 degrees celsius.
00:55
So from the equation, from the question it is clear that.
01:00
That is density at 0 degrees celsius that is equal to density at 500 into 1 plus y delta t y is nothing but coefficient of volume expansion and delta t is nothing but change in temperature that is delta t is equal to final temperature minus initial temperature that is equal to 500 degree celsius so now substituting the values here so before going ahead with the substitution rearranging this equation that is 500 density that is equal to 1 plus y delta t and here we have density at 0 degrees celsius as 1 .07 divided by density at 500 degrees celsius is 1 .5 degrees celsius is 1.
02:23
That is equal to 1 plus y delta t...