Vector magnitude ratio calculation (Jee Mains)

Scalar and Vector Products

Hard

Vector magnitude ratio calculation

Let $\vec a$ and $\vec b$ be the vectors of the same magnitude such that $\frac{{|\vec a + \vec b| + |\vec a - \vec b|}}{{|\vec a + \vec b| - |\vec a - \vec b|}} = \sqrt 2 + 1$ . Then $\frac{{|\vec a + \vec b{|^2}}}{{|\vec a{|^2}}}$ is :

SELECT ONE OPTION

Ask about this question