Physics - Gravitation Question with Solution | TestHub

In an experiment, a boy plots a graph between${\left(v_{\max }\right)}^2$and${\left(a_{\max }\right)}^2$for a simple pendulum for different values of (small) amplitudes, where$v_{\max }$and$a_{\max }$is the maximum velocity and the maximum acceleration respectively. He found the graph to be a straight line with a negative slope, making an angle of$30°$when the experiment was conducted on the earth surface. When the same experiment was conducted at a height$h$above the surface, the line was at an angle of$60°$. The value of$h$is [radius of the earth =$R$]