See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

By Mosely’s equation   v a Z b   v aZ ab   This represents a straight line between   v y axis  and Z(x-axis) O A Z 45o v At v 0, aZ ab   Z b OA 1     Also, slope o a tan45 1    When v 400, then 400 Z 1    v Z 1    Z 21  