%_Which of the following equations as suggested by Colebrook and White gives the increase in roughness of a new surface (≈í¬µ0) with age/time (t) (where, ≈í¬µ = roughness of the surface after time't'. ≈í¬± = a co-efficient to be experimentally determined)?_%

≈í¬µ = ≈í¬µ0 + ≈í¬±.t¬¨‚â§

≈í¬µ = ≈í¬µ0 + ≈í¬±.t

≈í¬µ = ≈í¬µ0 + ≈í¬±.t¬¨‚â•

≈í¬µ = ≈í¬µ0 + ≈í¬±.t‚Äö√Ö¬•

%_Which of the following equations as suggested by Colebrook and White

1.	%_Which of the following equations as suggested by Colebrook and White gives the increase in roughness of a new surface (≈í¬µ0) with age/time (t) (where, ≈í¬µ = roughness of the surface after time't'. ≈í¬± = a co-efficient to be experimentally determined)?_%
A.	≈í¬µ = ≈í¬µ0 + ≈í¬±.t
B.	≈í¬µ = ≈í¬µ0 + ≈í¬±.t¬¨‚â§
C.	≈í¬µ = ≈í¬µ0 + ≈í¬±.t¬¨‚â•
D.	≈í¬µ = ≈í¬µ0 + ≈í¬±.t‚Äö√Ö¬•
Answer» B. ≈í¬µ = ≈í¬µ0 + ≈í¬±.t¬¨‚â§

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%_Which of the following equations as suggested by Colebrook and White gives the increase in roughness of a new surface (≈í¬µ0) with age/time (t) (where, ≈í¬µ = roughness of the surface after time't'. ≈í¬± = a co-efficient to be experimentally determined)?_%

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