Mht Cet
Ray Optics
MHT CET 2019 2nd May Evening Shift
MCQ+1 / -02019
The critical angle for light going from medium ' $x^{\prime}$ to medium ' $y$ ' is ' $\theta$ '. The speed of light in medium ' $x$ ' is ' $v_x$ '. The speed of light in medium ' $y$ ' is