Teaching NVS PGT 2024 Test Series Physics Units, Dimensions and Measurements Dimensional formulae and dimensional equations
The earth is considered as a sphere of radius r and density ρ, the gravitational acceleration at a point on the surface of the earth is given as g = krρ where k is a constant and g is the gravitational acceleration at the poles. The dimension of k is:
1
M1 L1 T-2
2
M1 L-1 T1
3
M1 L-3 T2
4
M-1 L3 T-2