class-xi physics test-1
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!!. )f h is Elanck8s constant an# e is the charge/ the #imensions of resistance are same as:a. h!@e! 3. h!@e c. h@e! #. h@e
!%. The #imensions of gravitational constant F an# the moment of inertia are:a. M%T4!2/ M!T02 3. M41%T4!2/ M!T02 c. M41%T4!2/ M41!T2 #. M%T4!2/ M41!T2
!$. Fiven/ Gorce * %
+density/ then the #imensions of an# I are:
a. M!T4!2/ M41@%2 3. M!$T4!2/ M1@%412 c. M!4!T4!2/ M1@%412 #. M!4!T4!2/ M4%2
!. )f / C an# J #enote in#uctance/ capacitance an# resistance respectively/ then the #imension of time is
same as:a. C@ 3. 1@JC c. @J #. J@C
!;. A quantity K is given 3y Lo+5@t/ &here Lois the permittivity of free space/ is a length/ 5 is the
potential #ifference an# t is the time interval. The #imensional formula for K is the same as that of:a. electric resistance 3. electric charge c. electric potential #. electric current
!=. The energy +N/ angular momentum + an# universal gravitational constant +F are chosen as
fun#amental quantities. The #imensions of F in the #imensional formula of Elanck8s constant +h is:a. Oero 3. 41 c. @% #. 1
!>. )f N * energy/ F * gravitational constant/ ) * impulse an# M * mass/ then #imensions of F)M !@N!are
same as that of:a. time 3. mass c. length #. force
!?. The physical quantity having the #imensions M414%T%A!2 is:
a. resistance 3. resistivity c. electric con#uctivity #. electromotive force%0. )f force is proportional to square of velocity/ then the #imensions of proportionality constant are:
a. M41T2 3. M41T02 c. MT02 #. M0T412
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$0. The air 3u33le forme# 3y e-plosion insi#e &ater performe# oscillation &ith time perio# T that is
#irectly proportional to pa #3 Nc/ &here p is pressure/ # is the #ensity an# N is the energy #ue to
e-plosion. The values of a/ 3 an# c &ill 3e:
a. 4@;/ R/
1@%
3. @;/ 1@%/ Rc. @;/ R/ 1@%
#. none of these.
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