physics(anisha)

8/9/2019 Physics(Anisha)

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OBJECTIVE : TO FIND REFRACTIVE INDEXES OF A)

WATER B) OIL (TRANSPARENT) USING A PLANE

MIRROR , A EUICONVEX LENS , (MADE FROM A

GLASS OF KNOWN REFRACTIVE INDEX ) AND ONADJUSTABLE OBJECT NEEDLE .

APPARATUS :

A conv! "n# , $ %"$n &'o , $* , +o#n o'"

, c"$&% , #*$n , $n o%*'c$" n" , %"-& , "'n ,+n'**'n/ n" , 0$"1 &* #c$" , /"$## #"$ $n $

#%0o&* .

DIAGRAM :

THEORY :


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S&$"" $&o-n* o1 $* $# $ on $ 2$*, %"$n #-1$c

$n $ conv! "n# $# %"$c ov '*. T0'# 1o $ %"$no3

conc$v "n# o1 $* *n *0 "o #-1$c o1

conv! "n# $n %"$n &'o.L* 1 4 $n 1 5 $ *0 1oc$" "n/*0# o1 $* "n# $n

conv! "n# #%c*'v"6, *0n 1oc$" "n/*0 o1 *0

co&'n$*'on '#7

T0 1oc$" "n/*0 o1 *0 %"$no3conc$v "n# '#,

Fo& Ln# M$+8# 1o&-"$,

R 4 9 R $n R 5 9 1o $* "n#.

T0 1$c*'v 'n! o1 $* '# , :('')


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(0 ;R8 '# *0 $'-# o1 c-v$*- o1 *0 conc$v

#-1$c# o1 *0 %"$no3conc$v "n#).

T0 R$'-# o1 c-v$*- o1 *0 "n#, '#

W0 " '# $v$/ '#*$nc *n *0 "/# o1

#%0o&* $n 0 '# *0 '


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5) T0 n" $# $?-#* on *0 #*$n #-c0 *0$*

*0 $# no %$$""$! *n *'% o1 n"

$n '*# '&$/.

@)T0 '#*$nc *n *'% $n -%% #-1$c o1 "n#$# &$#- -#'n/ $ %"-& "'n $n $ 0$"1 &*

#c$". T0 '#*$nc *n *'% o1 n" $n -%%

#-1$c o1 &'o $# $"#o &$#- . T0 &$n o1

*0# *o $'n/# *$+n . T0'# &$n '#*$nc

$# -$" *o 1oc$" "n/*0 o1 conv! "n# (15).

) Fo 1oc$" "n/*0 o1 *0 co&'n$*'on) F o%# o1 $* $# %-* on *0 %"$n &'o

$"on/ '*0 *0 conv! "n# ov '* '*0 '*# #$& 1$c

$ov $# 1o. T0 $# #%$# 'n $ 1o& o1 "$6

$n $c*# "'+ $ %"$no3conc$v "n# .)T0 #*%# @ $n 5 %$* *o *&'n *0

-'v$"n* 1oc$" "n/*0 o1 co&'n$*'on.) Rco *0 o#v$*'on (*$" 4)

) R%$* *0 #*%# ,, 1o o*0 *$n#%$n* "'-'(+o#n o'").

C) Fo $'-# o1 c-v$*- o1 conv! "n# #-1$c.

) T0 conv! "n# $# &ov $n ' co&%"*"6.

T0 #%0o&* $# +%* on *0 "n# #-1$c.

) T0 *0 "/# o1 #%0o&* #0o-" %"$c

#6&&*'c$""6 on *0 "n# $n *0 cn*$" #c *'% $#

$?-#* ?-#* *o *o-c0 *0 #-1$c o1 *0 "n#.


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4H) T0 #%0o&* $# &ov 1o& #-1$c o1 *0

"n# $n $# %"$c on *0 %"$n &'o $n *0 cn*$"

#c $# *-n #o *0$* '*# *'% *o-c0 *0 %"$n &'o

#-1$c $n *0 $'n/# co.44) T0 #*%# $n %$* *0 *'&#.

45) T0 '&%##'on# o1 *0 "/# o1 #%0o&*

o*$'n on %$% $n *0' $v$/ '#*$nc

&$+.

A

"4 "5

B "@ C

" 9 "4 "5 "@ @OBSERVATIONS :

4) Ro-/0 1oc$" "n/*0 o1 conv! "n# 9 :::

c&5) T$" 4 , 1o *0 1oc$" "n/*0 o1 "n# $n

co&'n$*'on.

D'#*$nc o1 n" *'%


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A$n/&

n*

Fo&

"n# S-1$c ! 4

(c&)

Fo&

%"$nM'o

! 5 (c&)

M$n! 9 !4

!5 5

Foc$"

"n/*0 ! (c&)

@) T$" 5, 1o 0.

S.No.

In'*'$" C.S.R.on conv!

"n#

($)

No. o1co&%"*

o*$*'on

# (n)

F'n$" C.S.R.on %"$n

&'o

#-1$c

()

&9($3) '1

$ 9

(4HH

$3) '1

$

09 nX

%'*c0

& X

%'*c0

Calculation :

4)" 9 "4 "5 "@ @ 9 ............ c&

5)R 9 "5

0 05

5 9 :........ c&@)1 4 9


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Results :

4) T0 1$c*'v 'n! o1 $* n 9 ::::5)T0 1$c*'v 'n! o1 o*0 "'-' (+o#n o'") n"

9:::

Pecautions :

4)T0 %"$n &'o #0o-" c"$n $n 1-""6 #0'n'n/

#-1$c.5)T0 "'-' *$+n #0o-" *$n#%$n*.

@)T0 %$$""$! #0o-" &ov *'% *o *'%.)T0 6 #0o-" $* $ '#*$nc $o-* @H c& 1o&

n" 0'" &ov'n/ *0 %$$""$!.)On"6 1 o%# o1 "'-' #0o-" *$+n #o *0$* '*#

"$6 #0o-" *0'c+.

Souces o! eo :4)L'-' &$6 no* -'* *$n#%$n*.5)T0 %$$""$! &$6 no* 1-""6 &ov.@)T0 #%0o&* "/# #0o-" %"$c #6&&*'c$"

on *0 #-1$c o1 conv! "n#.)T0 *'% o1 cn*$" #c #0o-" no* ?-#* *o-c0 *0

#-1$c o1 "n# o &'o.

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