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Byju's Answer
Standard X
Physics
Laws of Reflection
In the figure...
Question
In the figure given, AB is a mirror, PQ is the incident ray and QR, the reflected ray. If
∠
PQR
=
112
o
, find
∠
PQA.
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Solution
B
y
l
a
w
′
o
f
r
e
f
l
e
c
t
i
o
n
t
h
e
a
n
g
l
e
o
f
i
n
c
i
d
e
n
c
e
i
s
e
q
u
a
l
t
o
a
n
g
l
e
r
e
f
l
e
c
t
i
o
n
∴
∠
P
Q
A
+
∠
P
Q
R
+
∠
R
Q
B
=
180
0
Q
+
112
0
+
Q
=
108
0
2
Q
+
112
0
=
180
0
2
Q
=
180
0
112
0
2
Q
=
68
Q
=
34
0
∴
∠
P
Q
A
=
34
0
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2
Similar questions
Q.
In the given figure,
A
B
is a mirror;
P
Q
is the incident ray and
Q
R
, the reflected ray. If
∠
P
Q
R
=
112
o
, finr
∠
P
Q
A
.
Q.
In the given figure, AB is a mirror; PQ is the incident ray and QR, the reflected ray. If ∠PQR = 112°, find ∠PQA.