WBJEE 2024 Physics & Chemistry Paper

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Question : 64 of 80

Marks: +1, -0

If

^

n

1,

^

n

2 and hat‌t represent, unit vectors along the incident ray, reflected ray and normal to the surface respectively, then

^
n2
=
^
n1
−2(
^
n1
⋅
^
t
)
^
t
^
n
2=
^
n
1+2(
^
n1
⋅
^
t
)
^
t
^
n
2=−
^
n
1
^
n2
=2
^
n1
−(
^
n1
×
^
t
)⋅
^
n1

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