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Two point charges of +5 x 10^-19 C and +20 x 10^-19 C are separated by a distance of 2m. Find the point on the line joining them at which electric field intensity is zero?

(a) 1 m (b) 1.5 m (c) 1.8 m (d) 2/3 m

Chemistry

Ag₂S + NaCN (A)
(A) + Zn (B)
(B) is a metal. Hence (A) and (B) are:

Mathematics

Let f ( x ) = (1+b²) x²+2bx+1 and let m(b) be the minimum value of f ( x ). As b varies, the value of m ( b ) is

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