Consider the following figure, which is an extract from a contour map (scale = 1 : 20,000) of an area. An alignment of a road at a ruling gradient of 4% is to be fixed from the point O and beyond. What should be the radius of the arc with O as the center to get the point of alignment of the next contour on the map?
fuEufyf[kr fp=k ij fopkj djsa] tks fdlh {ks=k ds leksPp ekufp=k (Ldsy = 1:20,000) ls fy;k x;k gSA 4% ds 'kkld <ky ij ,d lM+d dk lajs[k.k fcanq O ls vksj mlds vkxs r; fd;k tkuk gSA ekufp=k ij vxys leksPp ds lajs[k.k fcanq dks izkIr djus ds fy, O dks dsUnz ds :i esa pki dh f=T;k D;k gksuh pkfg,\
0.025 cm
0.25 cm
2.5 cm
5.0 cm
2.5 cm
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