a car driver sees an image of a bus in his driving mirror.which has a radius of curvature of 6m m. The bus which is 10m long is parallel to and following the car with the front of the bus 38m from the mirror.what is the apparent length of the bus as seen in the mirror
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Answer:
R=+3m⇒f=
2
+3
m
U=−5m
By Mirror formula:
v
1
+
u
1
=
f
1
⇒
v
1
+
(−5)
1
=
5
2
⇒
v
1
=
3
2
+
3
1
v
1
=
15
13
⇒v=
13
15
≃1.1538m behind the mirror
m=
h
o
h
I
=−(
u
v
)⇒h
I
=(
u
−v
)h
o
h
I
=(
13
15
×
(1.5)
1
)h
o
h
I
=
13
3h
o
ie. diminished & virtual & erect
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