Basic Maths and Units and DimensionsHard

Question

Three identical rods, each of length l, are joined to form a rigid equilateral triangle. Its radius of gyration about an axis passing through a corner and perpendicular to the plane of the triangle is

Options

A.l
B.
C.
D.

Solution

           
MI of the system w.r.t an axis  ⏊  to plane & passing through one corner



Now    ML2 = 3k2

 k =   

Create a free account to view solution

View Solution Free
Topic: Basic Maths and Units and Dimensions·Practice all Basic Maths and Units and Dimensions questions

More Basic Maths and Units and Dimensions Questions

For the circuit shown in Figure the potential difference between point a and b will be (Vb - Va)...A infinitely long line charge having a uniform charge per unit length λ lies a distance d from point O. Determine t...Two large vertical and parallel metal plates having a separation of 1cm are connected to a DC voltage source of potentia...Two rods of lengths L1 and L2 are made of materials whose coefficients of linear expansion are α1 and α2. If t...The ratio of one micron to one nanometre is...