A metal cylinder of radius R is placed on a wooden plank BD

Last updated: 6/19/2023

A metal cylinder of radius R is placed on a wooden plank BD The plank is kept horizontal suspended with the help of two identical string AB and CD each of length L The temperature coefficient of linear expansion of the cylinder and the strings are a and a respectively Angle e shown in the figure is 30 It was found that with change in temperature the centre of the cylinder did not move Find the ratio 1 if it is know that L 4R Assume that change in 2 value of 0 is negligible for small temperature changes L B B R L