**Question:**

If $\lambda$ be the ratio of the roots of the quadratic equation in $\mathrm{x}$, $3 m^{2} x^{2}+m(m-4) x+2=0$, then the least value of $m$ for which $\lambda+\frac{1}{\lambda}=1$, is :

Correct Option: 2

JEE Main Previous Year Jan. 12, 2019 (I)

**Solution:**