[" A physical quantity of the dimensions of length "],[" that can be formed out of "c,G" and "(e^(2))/(4 pi varepsilon_(0))" is "[c" is "],[" velocity of light,"G" is the universal constant of "],[" gravitation and "e" is charge "]],[[" (a) "c^(2)[G(e^(2))/(4 pi varepsilon_(0))]^(1/2)," (b) "(1)/(c^(2))[(e^(2))/(G4 pi varepsilon_(0))]^(1/2)],[" (c) "(1)/(c)G(e^(2))/(4 pi varepsilon_(0))," (d) "(1)/(c^(2))[G(e^(2))/(4 pi varepsilon_(0))]^(1/2)],[" (c) "(1)/(c)G(e^(2))/(4 pi varepsilon_(0))," (NEET "2017)]]