Equation of plane through the line of intersection of two planes in vector form is

(1)

Where the standard equation of planes are

Putting values in equation (1), we have

(2)

Given a plane perpendicular to this plane, So if n1 and n2 are normal

vectors of planes

(

2.(2 + λ) + (-1).(-3-λ) + 1.4=0

4 + 2λ + 3 + λ + 4=0

11 + 3λ=0

Putting the value of λ in equation (2)