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                                    (18)The density of a material in CGS system ofunits is 4g cm. In a system of units in whichunit of length is 10cm and unit of mass is100 g, the value of density of material willbe-(a)0.04(c)40(b) 0.4(d) 400 | 
                            
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Answer»  Density in CGS system is = 4 gms/ cm³Unit of length = 1 cm unit of mass = 1 gm Another system of units: unit of mass = gm' = 100 gm unit of length = cm' = 10 cm => 1 gm = and 1 cm = Substitute these values in the value of the density. Now density of the material: Thus in the new system the value of density will be 40 units.  | 
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