Solutions of two electrolytes 'a' and 'b' are diluted. The conductivity of 'b' increases 1.5 times, while that of 'a' increases 25 times. Which of the two is a strong electrolyte? Justify your answer graphically.
a) Electrolyte 'a' is strong
b) Electrolyte 'b' is strong
c) Both 'a' and 'b' are strong
d) Insufficient information to determine strength
