A ray of light falls normally on an equilateral prism of refractive index $\mathrm{\mu }=\sqrt{3}$. Match the following table :
i₁ = Angle of incidence
i₂ = Angle of emergence from second surface of prism
r₁ = Angle of refraction at the first surface of prism
r₂ = Angle of incidence at second surface of prism
 

	List-I		List-II
(P)	Angle i1	(A)	0°
(Q)	Angle r1	(B)	90°
(R)	Angle i2	(C)	60°
(S)	Angle r2	(D)	None

	P	Q	R	S
(1)	D	B	A	C
(2)	B	C	D	A
(3)	A	B	C	D
(4)	A	A	D	C