Teaching UP TGT Mock Test Series 2025 Physics Units, Dimensions and Measurements Dimensional formulae and dimensional equations
A dimensionless quantity is constructed in terms of electronic charge e, permittivity of free space ε0, Planck’s constant h, and speed of light c. If the dimensionless quantity is written as \(e^{α} ε_{0}^{β} h^{γ} c^{δ}\) and n is a non-zero integer, then (α, β, γ, δ) is given by
1
(2n, –n, –n, –n)
2
(n, –n, –2n, –n)
3
(n, –n, –n, –2n)
4
(2n, –n, –2n, –2n)