Match the following in case of refraction in (i1 = angle of incidence, i2 = angle of emergence) prism List - I List - IIaFor normal incidenceeD=90∘−AbFor normal emergencefD=i2+90∘−AcFor grazing incidencegD=i2−AdFor a ray at normal Incidence and emergent ray grazing the second facehD=i1−A

a → g , b → h , c → f , d → e

a → g , b → h , c → f , d → e

a → g , b → e , c → f , d → h

a → f , b → e , c → g , d → h

a → h , b → e , c → h , d → h

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Match the following in case of refraction in (i1 = angle of incidence, i2 = angle of emergence) prism

List - I List - II
a For normal incidence e $D = 90^{\circ} - A$
b For normal emergence f $D = i_{2} + 90^{\circ} - A$
c For grazing incidence g $D = i_{2} - A$
d For a ray at normal Incidence and
emergent ray grazing the second face h $D = i_{1} - A$

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$a \to g, b \to h, c \to f, d \to e$

$a \to g, b \to e, c \to f, d \to h$

$a \to f, b \to e, c \to g, d \to h$

$a \to h, b \to e, c \to h, d \to h$

answer is A.

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For normal incidence angles i=r= $0^{0}$

for grazing condition angles r=c and i= $90^{0}$ ,where c is critical angle

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	List - I		List - II
a	For normal incidence	e	$D = 90^{\circ} - A$
b	For normal emergence	f	$D = i_{2} + 90^{\circ} - A$
c	For grazing incidence	g	$D = i_{2} - A$
d	For a ray at normal Incidence and emergent ray grazing the second face	h	$D = i_{1} - A$