Marking Scheme

SRE-111
!=v ;f}o{ zlQmnfO{ Pslqt kf/]/÷ jf cGo ;xL pQ/ n]v]df !
pmhf{sf] pkof]u ljj]sk"0f{ ¿kn] ug]{
!
pmhf{sf j}slNks ;|f]tx¿sf] ljsf; ug]{
!
@=s lglZrt cfotg ePsf] s'g} kbfy{sf] lk08nfO{ 4 0 C tfkqmd ePsf] Tolt g} cfotg !
ePsf] kfgLsf] lk08n] efu ubf{ lg:sg] kl/0ffdnfO{ To; kbfy{sf] ;fk]lR5s 3gTj
t/nsf] rfk / ulx/fO eGg] ;DaGw
kmf]sf dfly cfpFbf t/nsf] rfk sd x'Fbf kmf]sf 7"nf] x'G5 .
)=%
!
xfjfdf tf}n = kfgLdf tf}n lj:yflkt kfgL
= 22N + 5N
= 27N !
cfls{ldlh l;4fGt )=%
@= v j:t' C )=%
t}l/Psf] cj:yfdf,
j:t'sf] tf}n Ö lj:yflkt kfgL tf}n
1×g = m×g
lj:yflkt kfgL = 1kg !
Knjgsf] lgod
t/n kbfy{df plqg] j:t'n] cfˆgf] tf}n a/fa/sf] t/n kbfy{ lj:yflkt u5{ .
)=%
!=%
#=s 1 Kg kf/f]nfO{ 1 0 C tfkqmddf a[l4 ug{ 140J zlQm cfjZos k5{ . !
kfgLsf] cfotg 4 0 C df ;a}eGbf sd x'g] ePsf]n] !
ljlzi6 tfkwf/0f Ifdtf / tfkqmkaLr Jo'Tqmdfg'kflts ;DaGw x'G5 .
@
To;sf/0f 'y' j:t'sf] lj=tf=If= sd ePsf]n] o;sf] tfkqmd a9L x'G5 .
#=v n]G;n] k|sfzsf] ls/0fx¿nfO{ s]lGb|t jf ljs]lGb|t ug]{ IfdtfnfO{ n]G;sf] ;fdYo{ !
elgG5 .
s]Gs]e n]G;n] ;dfgfGt/ k|sfzsf ls/0fx¿nfO{ ljs]lGb|t u5{ . !
s]Gs]e n]G; )=%
lbOPsf],
;fdYo{ (P) = -2.5D
s]Gb|Ls/0f b'/L (f) = ?
;"q,
)=%
= 0.4m n]v]df jf 40cm
)=%
2
A