RAY OPTICS
# opti Cal image ;
Image is arefraclion
Ca of
repli ca
of ight.
Okjeet foymed by reflteion roy
An lmasge is fon shen at least tuto gut
appear to diverge fon
a
Converge to a point on
Poiut by refkeion on refyachon
The two tybes of imaqes
aee two 6 virtual imag
Reat fmage
formed hen too g t oys
Real image is after reflicton
ackually Converqe to a poiut
on reflieton.
A
OA =obje et
IB- real image
forMed ahem two iget
is
B) Virtal image diverge from a Poit afe
Touys aPpear to
refochom
refleetisn on
OA : objeet
IB = vittual image
t Rotation of Mirron
Len
For, aivem inedent roy
rotated throual a lertein angle
mirror is
throuys
(8) tem refecteol ro rotates
Se. 29
Hwiee tluat anle
, (i8)
old icident anyle
. old refeeted myle <NoB :
(AoB =2
(AON = i+8
New in ci dend oyle
ete d amglo <n'oB= (+0
. . New refle
<AoB= 2(l+D)
rotaton of,refloeted rag
(AOB- <AoB
2(i+8) - 2
21°4 20- 2
20
# Angle of deviatiew of (refloeted) oy after
multiple (2) refleetingat differtmt mirTORL
Mi xcfleefe
after a
= 180- 2xincident
Total leniati¡n A anyle
- 18o- 2i
de't'om et A
d- leviationat B
+
-(160'- 2i )+(180-2i2)
|360°- 2(i;ti2)
reflieted rg
it wil be Prenos en
te
t r n s obete
2i;)-(18e-2t) = 2(h-)
d= (r&o'-
, Sphurical Miror?
J6) ConCawe miTro
(a) Con vex mrror M
F
M2
Sign Con vemtion
distat
Iw ever Bituati n( Case) the obieet
image distame (), fo cad length (1)
(u), curvature are measwed
from
YadLg oe
fole (p) oft e tlese disfane one
measwring dineefion,thn
îf fon
as otboSte to ) negatve ond
tuese distamee
igit direction een tese
it one goes to warols
are ocen
Example
O- obj cet
po = objeet disfane pe =ra lis of
O+þo site to liglt Curvatui
disfan ee
PI = mge
which cs towards cigat)
PF =focal leng
# opti Cal image ;
Image is arefraclion
Ca of
repli ca
of ight.
Okjeet foymed by reflteion roy
An lmasge is fon shen at least tuto gut
appear to diverge fon
a
Converge to a point on
Poiut by refkeion on refyachon
The two tybes of imaqes
aee two 6 virtual imag
Reat fmage
formed hen too g t oys
Real image is after reflicton
ackually Converqe to a poiut
on reflieton.
A
OA =obje et
IB- real image
forMed ahem two iget
is
B) Virtal image diverge from a Poit afe
Touys aPpear to
refochom
refleetisn on
OA : objeet
IB = vittual image
t Rotation of Mirron
Len
For, aivem inedent roy
rotated throual a lertein angle
mirror is
throuys
(8) tem refecteol ro rotates
Se. 29
Hwiee tluat anle
, (i8)
old icident anyle
. old refeeted myle <NoB :
(AoB =2
(AON = i+8
New in ci dend oyle
ete d amglo <n'oB= (+0
. . New refle
<AoB= 2(l+D)
rotaton of,refloeted rag
(AOB- <AoB
2(i+8) - 2
21°4 20- 2
20
# Angle of deviatiew of (refloeted) oy after
multiple (2) refleetingat differtmt mirTORL
Mi xcfleefe
after a
= 180- 2xincident
Total leniati¡n A anyle
- 18o- 2i
de't'om et A
d- leviationat B
+
-(160'- 2i )+(180-2i2)
|360°- 2(i;ti2)
reflieted rg
it wil be Prenos en
te
t r n s obete
2i;)-(18e-2t) = 2(h-)
d= (r&o'-
, Sphurical Miror?
J6) ConCawe miTro
(a) Con vex mrror M
F
M2
Sign Con vemtion
distat
Iw ever Bituati n( Case) the obieet
image distame (), fo cad length (1)
(u), curvature are measwed
from
YadLg oe
fole (p) oft e tlese disfane one
measwring dineefion,thn
îf fon
as otboSte to ) negatve ond
tuese distamee
igit direction een tese
it one goes to warols
are ocen
Example
O- obj cet
po = objeet disfane pe =ra lis of
O+þo site to liglt Curvatui
disfan ee
PI = mge
which cs towards cigat)
PF =focal leng
