Copy Set-1 CP Star-2012 XII going [SAT+MAT] - Career Point

Q.24 A vertical tank, open at the top, is filled with a Q.24 'kh"kZ ij [kqys ,d Å/oZ VSad dks nzo ls Hkjk x;k gS
liquid and rests on a smooth horizontal surface.
rFkk ,d ?k"kZ.kghu {kSfrt lrg ij fojke esa j[kk
A small hole is opened at the centre of one side
of the tank. The area of cross section of the tank x;k gSA ,d VSad dh ,d Hkqtk ds dsUnz ij ,d NksVk
is A which is Nα where α is the area of cross fNnz cuk;k x;k gSA VSad dk vuqizLFk dkV {ks=kQy
section of hole and N is large number : h is the A tks Nα gS tgk¡ α fNnz dk vuqizLFk dkV {ks=kQy
height of the tank.
rFkk N cM+h la[;k gS : h VSad dh Å¡pkbZ gSA
g
(1) Initial acceleration of tank is g
N (1) VSad dk izkjfEHkd Roj.k gS N
g
(2) Initial acceleration = g
N (2) izkjfEHkd Roj.k =
(3) The velocity of efflux is inversely
N
proportional to α.
(3) cfg%L=kko dk osx α ds O;qRØekuqikrh gS
(4) The velocity of efflux is independent of α.
(4) cfg%L=kko dk osx α ls Lora=k gS
Q.25 A rod of copper, uniform along its length l and Q.25 viuh yEckbZ l ds vuqfn'k ,dleku rk¡cs dh ,d
of a rectangular cross section of sides of length a NM+ yEckbZ a rFkk pkSM+kbZ b (< a) dh Hkqtk dk
and width b (< a) has one end maintained at vk;rkdkj vuqizLFk dkV j[krh gS mldk ,d fljk
100ºC and the other end at 0ºC. The rod is 100ºC ij nwljk 0ºC ij O;ofLFkr gSA NM+ dks
insulated so that no heat is lost from the sides.
Å"ekjks/kh cuk;k x;k gS rkfd Hkqtkvksa ls Å"ek gkfu
Let Q 1 be the amount of heat per second that is
ugha gksA ekuk Q
transmitted along its length, Q a the heat
1 izfr lSd.M Å"ek dh og ek=kk gS
tks mldh yEckbZ ds vuqfn'k lapfjr gksrh gS] fdlh
transmitted parallel to a and Q b the heat
transmitted parallel to b across any section after Hkh vuqizLFk dkV ds fljksa ij LFkkbZ voLFkk izkIr gksus
the steady conditions are reached. Then -
ds ckn a ds lekUrj lapfjr Å"ek Q a rFkk b ds
(1) Q l = constant, Q a > Q b ≠ 0
lekUrj lapfjr Å"ek Q b gSA rc -
(2) Q l = 0, Q a = Q b ≠ 0
(1) Q l = fu;r, Q a > Q b ≠ 0
(3) Q l = 0, Q a = Q b = 0
(2) Q l = 0, Q a = Q b ≠ 0
(4) Q l = constant, Q a = Q b = 0
(3) Q l = 0, Q a = Q b = 0
(4) Q l = fu;r, Q a = Q b = 0
CHEMISTRY
CHEMISTRY
Single correct type (Q.26 to 40)
Single correct type (Q.26 to 40)
Q.26 Which of the following order is incorrect ? Q.26 fuEu esa ls dkSulk Øe xyr gS ?
(1) Acidic : NH 3 < PH 3 < AsH 3
(1) vEyh; : NH 3 < PH 3 < AsH 3
(2) IE 1 : Li < Be < B < C
(2) izFke vk;uu ÅtkZ : Li < Be < B < C
(3) Basic : Al 2 O 3 < MgO < Na 2 O < K 2 O
(4) Ionic radius : Li + < Na + < K + < Cs +
(3) {kkjh; : Al 2 O 3 < MgO < Na 2 O < K 2 O
(4) vk;fud f=kT;k : Li + < Na + < K + < Cs +
Q.27 The correct order of ionic radius is -
Q.27 vk;fud f=kT;k dk lgh Øe gS -
(1) Yb 3+ < Pm 3+ < Ce 3+ < La 3+
(1) Yb 3+ < Pm 3+ < Ce 3+ < La 3+
(2) Ce 3+ < Yb 3+ < Pm 3+ < La 3+
(2) Ce 3+ < Yb 3+ < Pm 3+ < La 3+
(3) Yb 3+ < Pm 3+ < La 3+ < Ce 3+
(3) Yb 3+ < Pm 3+ < La 3+ < Ce 3+
(4) Pm 3+ < La 3+ < Ce 3+ < Yb 3+ (4) Pm 3+ < La 3+ < Ce 3+ < Yb 3+
Space for rough work
CAREER POINT, CP Tower, Road No.1, IPIA, Kota (Raj.), Ph: 0744-3040000 Page # 9