Solve
Study
Textbooks
Guides
Join / Login
>>
Class 12
>>
Physics
>>
Ray Optics and Optical Instruments
>>
Prism
>>
Two vertical plane mirrors are inclined
Question
Two vertical plane mirrors are inclined at an angle of
6
0
0
with each other. A ray of light travelling horizontally is reflected first from one mirror and then from the other. The resultant deviation is
A
6
0
0
B
1
0
0
0
C
1
8
0
0
D
2
4
0
0
Medium
Open in App
Solution
Verified by Toppr
Correct option is D)
F
r
o
m
t
h
e
f
i
g
u
r
e
a
+
b
=
9
0
0
⇒
b
=
9
0
0
−
a
N
o
w
,
b
+
6
0
+
c
=
1
8
0
⇒
c
=
1
8
0
−
6
0
−
b
=
1
8
0
−
(
9
0
−
a
)
=
3
0
+
a
N
o
w
,
d
+
c
=
9
0
d
=
9
0
−
c
=
9
0
−
(
3
0
+
a
)
=
6
0
−
a
T
h
u
s
,
i
n
t
r
i
a
n
g
l
e
P
Q
R
∠
Q
=
2
a
∠
R
=
2
d
=
2
(
6
0
−
a
)
=
1
2
0
−
2
a
s
o
,
a
n
g
l
e
∠
Q
P
T
i
s
=
∠
Q
+
∠
R
=
1
2
0
N
o
w
,
a
n
g
l
e
o
f
d
e
v
i
a
t
i
o
n
=
r
e
f
l
e
x
∠
Q
P
T
=
3
6
0
−
1
2
0
=
2
4
0
∘
H
e
n
c
e
,
t
h
e
o
p
t
i
o
n
D
i
s
t
h
e
c
o
r
r
e
c
t
a
n
s
w
e
r
.
Solve any question of
Ray Optics and Optical Instrument
with:-
Patterns of problems
>
Was this answer helpful?
0
0
Similar questions
At what angle will a ray of light be incident on one face of an equilateral prism, so that the emergent ray may graze the second surface of the prism
(
μ
=
1
.
5
)
?
Medium
View solution
>
A small angled prism of angle
3
0
is made of a material of
μ
=
1
.
5
. A ray pf light is made incident as shown in the figure M is is a plane mirror. Find the angle of deviation for the reflected from the mirror M with respect to the incident ray.
Hard
View solution
>
A prism having an apex angle of
4
o
and refractive index of
1
.
5
0
is located in front of a vertical plane mirror as shown in the figure. A horizontal ray of light is incident on the prism. The total angle through which the ray is deviated is?
Hard
View solution
>
The angle between two plane refracting surfaces of the prism is called the angle of
Medium
View solution
>
A ray reflected successively form to p[lane mirrors inclined at a certain angle undergoes a deviation of
3
0
0
0
.
Then the no. of images observable is
?
Medium
View solution
>
View more
More From Chapter
Ray Optics and Optical Instruments
View chapter
>
Revise with Concepts
Refraction Through Prism
Example
Definitions
Formulaes
Learn with Videos
Introduction to Prism
5 mins
Refraction Of Light Through A Prism
5 mins
Factors Affecting Angle of Deviation
7 mins
Prism formula and Related Terms
15 mins
Deviation through Thin Prism
7 mins
Shortcuts & Tips
Memorization tricks
>
Cheatsheets
>
Common Misconceptions
>
Important Diagrams
>
Problem solving tips
>
Mindmap
>
Practice more questions
Easy Questions
112 Qs
>
Medium Questions
651 Qs
>
Hard Questions
229 Qs
>