ques no 20 and 21 with full solution Share with your friends Share 2 Vijay Shankar Yadav answered this Dear Student, 20) we know that T=FL=FLT2L2T2=FL1L2T2T2=EV-2T-221) we know that Y=F/A∆L/Lhere denomenater is dimensionless quantity so dimension of Y=FA-1D0 -1 View Full Answer