An isosceles triangle is formed with a thin rod of length l1 and coefficient of linear expansion α1, as the base and two thin rods each of length l2 and coefficient of linear expansion α2 as the two sides. The distance between the apex and the midpoint of the base remain unchanged as the temprature is varied. If The ratio ll:l2 is equal to n√α2α1, then the value of n is (answer upto two decimal places)

An isosceles triangle is formed with a thin rod of length l1 and coeff

1.	An isosceles triangle is formed with a thin rod of length l1 and coefficient of linear expansion α1, as the base and two thin rods each of length l2 and coefficient of linear expansion α2 as the two sides. The distance between the apex and the midpoint of the base remain unchanged as the temprature is varied. If The ratio ll:l2 is equal to n√α2α1, then the value of n is (answer upto two decimal places)
Answer» An isosceles triangle is formed with a thin rod of length $l_{1}$ and coefficient of linear expansion $α_{1}$ , as the base and two thin rods each of length $l_{2}$ and coefficient of linear expansion $α_{2}$ as the two sides. The distance between the apex and the midpoint of the base remain unchanged as the temprature is varied. If The ratio $l_{l} : l_{2}$ is equal to $n \sqrt{\frac{α_{2}}{α_{1}}}$ , then the value of $n$ is (answer upto two decimal places)