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Questions asked by balaji.thirumalai
Questions
4474
questions
1
answer selected
(chatquestion)...(3) Given that f satisfies (u)-Av) S lu- for [a, b]. Then (x) dx-(b-a)f(a) s (6-a) (2) (6-a)* (1) 21 (3) (b-a) (4) none of these
other
telegram-2148
asked
May 30, 2020
0
answers
(chatquestion)...Poge QA iat Heaction : Ag B2 (9) RAC9) +2B19) af the temb. y00°c bas othe grate constornd K= 2.0x10-ec-1.what Acacentage af A, Be is decomposed on 900 seconds 3 Order goy phase -> तर्चनमर भा के वाहास Qeaste heating far
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telegram-2145
asked
May 30, 2020
1
answer
(chatquestion)...The correct statement among the following is (a) (SIH3)3N is planar and more basic than (CH3)3N (b) (SIH3)3N is pyramidal and more basic than (CH3)3N (c) (SiH3)3N is planar and less basic than (CH3)3N (d) (SiH3)3N is pyramidal and less basic than (CH3)3N.
other
telegram-2142
asked
May 30, 2020
1
answer
(chatquestion)...Q. The taxi charges in a city comprise of a fixed charge together with the charges for the distance covered. For a journey of 10 km the charge paid is Rs. 75 and for a journey of 15 km the charge paid is Rs. 110. What will a person have to pay for travelling a distance of 25 km?
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telegram-2139
asked
May 30, 2020
1
answer
(chatquestion)...7.Three codons on MRNA are not recognised by tRNA what are they? What is the general term used for them what is their significance in protein synthesis?
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telegram-2136
asked
May 30, 2020
1
answer
(chatquestion)...2. Orchid flower, Ophrys co-evolves to maintain resembelance of its petal to female bee. Explain how and why does it do so?
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telegram-2133
asked
May 30, 2020
1
answer
(chatquestion)...Q. Life style diseuses inctreusing are atd 'a laamingly in India. we also dealing with large 8cale malnutsition in ade the papu lation. by which both of these 1s there method any addres s we Can pre blems te gethco a
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telegram-2130
asked
May 30, 2020
1
answer
(chatquestion)...An electric dipole of moment 2 x 10 C-m is -8 aligned in a uniform electric field of 2 x 104 N/C. Calculate the work done in rotating the dipole from 30° to 60°.
other
telegram-2127
asked
May 30, 2020
1
answer
(chatquestion)...Q-A Anien L-C-R circuit with Rz 20SL1L=1SH cncl (= 3uf in conneeted to a vasiiable trequencyy of the Aupply equalh the complete cycle? natoral frequency of the cirwit in one
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telegram-2122
asked
May 30, 2020
1
answer
(chatquestion)...tan 2 + fan 7 24 tem LHS tan" 24 1-2x? tem? 48477 tem 12 S 264-14 250 tom 2 RHS gED
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telegram-2113
asked
May 30, 2020
1
answer
(chatquestion)...Prove tan 2 7 = tan + tan¬. 11 24 2
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telegram-2110
asked
May 30, 2020
1
answer
(chatquestion)...For the matrices A and B, verify that (AB) = BA where 1 (1) A--4B -[-1 2 1] (ii) A-1.B- [1 5 7] 3 |21
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telegram-2108
asked
May 30, 2020
1
answer
(chatquestion)...Q.white light ů अ incidlent e on one of the facting susface d prism angle D of , स the refedchive sndices for real Dand blue are 1:641 and 1-6 s9 nessertively what Calaus leill Colouts the angulat seosation blw these twis when be they ematges out.
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telegram-2103
asked
May 30, 2020
1
answer
(chatquestion)...(a)Name the four bases present in DNA. Which one of these is not present in RNA? (b) essential and non-essential amino acids in human food.
other
telegram-2101
asked
May 30, 2020
1
answer
(chatquestion)...Question 12: State whether the following statements are true or false. Justify. (i) For an arbitrary binary operation on a set N, a *a = a Va EN. (ii) If * is a commutative binary operation on N, then a (b* c) = (c * b) * a
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telegram-2099
asked
May 30, 2020
1
answer
(chatquestion)...DATE Q The devations paduced or volet yellno and red lights 3-27°and power of fint glari. 3:32 (ase f a ptism ade 3.22" royplchiely Calcuate disperiie are
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telegram-2095
asked
May 30, 2020
1
answer
(chatquestion)...(i) Write the name of two monosacc.narides obtained on hydrolysis of lactose sugar. (ii) Why Vitamin C cannot be stored in our body? (iii) Write the structural difference between starch and cellulose.
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telegram-2093
asked
May 30, 2020
1
answer
(chatquestion)...(i) Potassium trioxalatochromate(II) (ii) Pentaamminecarbonatocobalt(III) chloride (ii) Dichloridobis(ethane-1,2-diamine)cobalt(III) chloride (iv) Pentaamminecarbonatocobalt(III) chloride
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telegram-2090
asked
May 30, 2020
1
answer
(chatquestion)...A block is pulled slowly as shown in the diagram. Show that force F increases as the block moves up. Find the force F when the block is at depth h. d...(Ans me)
other
telegram-2082
asked
May 29, 2020
1
answer
(chatquestion)...Which mixture of the solutions will lead to the farmation of negatively charged colloidal (Ag sol ? (1) 50 ml of 1 MAGNO, 50 mL of 1.5M KI (2) s0 ml. af 1 MAGNO, 50 mL of 2 M KI (a) s0 ml of 2 M AgNO, 50 ml of 1.5 M KI (4) 50 ml. of a.1 MAgNo, + 50 mL of 0.1 M KI
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telegram-2079
asked
May 29, 2020
1
answer
(chatquestion)...Under isothermal condition, a gas at 300 K pands from 0.1 L to 0.25 L againsta constant eaternal presure of 2 bar. The work dune by the gas is (Given that 1Lbar = 100 J) (1) -30 J (2) SN (3) 25J (4) 30J
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telegram-2076
asked
May 29, 2020
1
answer
(chatquestion)...71. Which of the following lines correctly show the temperature dependence of equilibrium constant K, for an exothermic reaction? (1) C and D (2) A and D (3) A and B (4) B and C
other
telegram-2072
asked
May 29, 2020
1
answer
(chatquestion)...Hoo long by pascing Current released should water be epéctaoly thoough ampesiee the 100 80 that xygen can completly burn 27.66 of diborane? CAtomic -cweight ofB 10.84) 8.2 hous 6.4 hotrs trb hougs 6.8 houag.
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telegram-2069
asked
May 29, 2020
1
answer
(chatquestion)...43. Tangent and normal are drawn at P(16, 16) on the parabola y' =16x, which intersect the axis of the parabola at A and B, respectively. If C is the centre of the circle through the points P. A and B and 2CPB -0, then a value of tan@ is: (1)3 (3) 31122
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telegram-2066
asked
May 29, 2020
1
answer
(chatquestion)...37. Let S= (xeR:x20 and 2|Jx-3+Jx(Jx-6) + 6 = 0}. Then S: (1) contains exactly two element. (2) contains exactly four elements. (3) is an empty set. (4) contains exactly one element.
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telegram-2064
asked
May 29, 2020
1
answer
(chatquestion)...28. All the graphs below are intended to represent the same motion. One of them does it incorrectly. Pick it up. (1) pe (2) (3) vscy positon (4) datan
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telegram-2058
asked
May 29, 2020
1
answer
(chatquestion)...89. For 1 molal aqueous solution of the following compounds, which one will show the highest freezing point? (1) [Co(H,0), CI, ]C1 2H,0 (2) [Co(H,O), CI, ]3H,0 (3) [Co(H,0), ja, (4) [Co(H,O), Ci]CI, H,O
other
telegram-2056
asked
May 29, 2020
1
answer
(chatquestion)...34. Tangents are drawn to the hyperbola 4x²-y = 35 at the points P and Q. If these tangents intersects at the point T(0, 3) then the area (in sq. units) of APTQ is: (1) 60 5 (2) 36 5 45 5 (4) 54 3 (3)
other
telegram-2054
asked
May 29, 2020
1
answer
(chatquestion)...24. The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre of the loop is B;. When the dipole moment is doubled by keeping the current B is: constant, the magnetic field at the centre of the loop is Bz. The ratio B, (1) JZ (2) (3) 2 (4) 3
other
telegram-2052
asked
May 29, 2020
1
answer
(chatquestion)...Q 3 In oogamy, female gamete is large and non-motile but the male gamete is reverse in its properties. Why such type of adjustment is there in higher organisms?
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telegram-2049
asked
May 29, 2020
1
answer
(chatquestion)...(i) Names of two complexes which are used in treatments. (ii) Double salt is different from a complex.
other
telegram-2046
asked
May 29, 2020
1
answer
(chatquestion)...Q. Explain why a ray of light passing through the centre of curvature of concave minor gets reflected along the same path.
other
telegram-2043
asked
May 29, 2020
1
answer
(chatquestion)...- A 12.5 eV electron beam is used to bombard gaseous hydrogen at room temperature. What series of wavelengths will be emitted? NC
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telegram-2040
asked
May 29, 2020
1
answer
(chatquestion)...> Amniecenteris one eur country da this ban neceseany 2 Comment. sox determinaton i Bahned in
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telegram-2036
asked
May 29, 2020
1
answer
(chatquestion)...0 Mention the Assested Refera ductiod Technolyn, LART) programme pacimaty aim ol
other
telegram-2030
asked
May 29, 2020
1
answer
(chatquestion)...80 Let I >I, and J, = %3D x+1 dr, J = J, %3D x+1 where x> 0. T=1 (A) In = fx In ada (B) I= f In(x+ 1)dx %3D (C) J= f In ( a dx x+1 (D) I-J= x Inx- x+c where c be the integral constant
other
telegram-2027
asked
May 29, 2020
1
answer
(chatquestion)...A conducting spherical hollow shell of inner radius r, and outer radius r, with uniform charge densities o and -o respectively. Then, the charge inside the cavity is (1) Zero (2) 4ro (r,² – r,?) (3 ) -4πστ2 (4) 4tor,?
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telegram-2024
asked
May 29, 2020
1
answer
(chatquestion)...1. The opposite corners of a square carry Q charge each and the other two opposite corners of the same square carry q charge each. If the resultant force on q is zero, how are Q and q related?
other
telegram-2018
asked
May 29, 2020
1
answer
(chatquestion)...43 Which of the following is incorrectly matched : CH, CH, H- (1) H- -HO- and HO H- are Identical -H -HO- но- CH, CH, CH, CH, H- (2) H- -H- are H- Br Br and CI- CH; CH: enantiomers (3) is a meso compound ÇOOH COOH H- -Br -Br (4) and are Br- -H H- Br COOH COOH diastereomers
other
telegram-2013
asked
May 29, 2020
1
answer
(chatquestion)...A cdain f length e< I8 u placed na dynoo t6 Aulace wheseme poeit i haigantal d eme pat in en quasde. cioACular of sradiue R im the vertical plane. as hron Imitiall the whole pasit of chain liee in the circulay pasut with one end at topme paint of circular Auface 9the man Gt choun m. slowey the whole chain on hostzontal pauet Then work Bequired to pull vey sing 2. mge²re
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telegram-2011
asked
May 29, 2020
1
answer
(chatquestion)...Attempt Questions View Explanation Difficulty Level Q147: Doubts The correct stability order of following species is : (z) (w) (x) (y) (1) x > Y > w > Z (2) y > x > w > z (3) x > W > Z > y (4) z > X > y > W
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telegram-2007
asked
May 29, 2020
1
answer
(chatquestion)...70, An spherical vessel of material of conductivity k, inner and outer radii r, and r2 contains a liquid, maintained at temperature T1. The outside temperature is T2 (T2<T¡), the rate of heat loss is- (T-T2) (12 -1) (T-T2) (r2 - ) (T-T2) (1, - ) (T;-T2 ) (12 -1 ) (1) k.G12 (2) 2k.T.12 (3) 4k.T.I2 (4) 8k.T.12
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telegram-2005
asked
May 29, 2020
1
answer
(chatquestion)...69.A thin vessel of inner radius r and length L is used to boil a liquid. There is a heater coil inside the vessel and it maintains uniform temperature T1. Temperature of surrounding is T2(<T¡). To prevent heat loss, the cylinder is wrapped in insulator of thermal conductivity k and thickness h. Rate of heat loss from the curved surface, is- 2TurkL 2tr k (1) (T-T,) (2) (T,-T,) h.L 2nrkL (3) In(1+h/r) 2tkL (L-L)- (T-T,) (4) In(h/r)
other
telegram-2003
asked
May 29, 2020
1
answer
(chatquestion)...66.The radius of cross section of a conductor decreases linearly from one end to the other. The temperature of the two ends is 2T and T respectively. The temperature of the mid-point is- 3T (1) less than 3T (2) equal to 3 T (3) greater than 2 (4) can not be concluded
other
telegram-2001
asked
May 29, 2020
1
answer
(chatquestion)...Question 8- Express the given matrix as the sum of a symmetric and a skew-symmetric matrix. [2 3 17 1 2 4 1 2 T
other
telegram-1998
asked
May 29, 2020
1
answer
(chatquestion)...6. Calculate the pressure needed to prevent osmosis when 10.0 g CaCl2 is added to 100 mL of water?
other
telegram-1995
asked
May 29, 2020
1
answer
(chatquestion)...2. Which ion would you expect to be more heavily hydrated? 1. K', Са2+ 2. Na*, K* 3. Cu2*, Cu* +.
other
telegram-1991
asked
May 29, 2020
1
answer
(chatquestion)...A Consider A ACB, right-angled at C, in which AB = 29 units, BC = 21 units and Z ABC = 0 %3D (see Fig. 8.10). Determine the values of 29 (i) cos? 0 + sin² 0, (ii) cos? 0 – sin 0. B 21 Fig. 8.10
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telegram-1988
asked
May 29, 2020
1
answer
(chatquestion)...O- Which tegim of the AP:21, 18,15,.. is -81? Al so, is teim 0? 6Give eason for your any answert.
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telegram-1985
asked
May 29, 2020
1
answer
(chatquestion)...SLA7 (n) 11. In Figure 1-Q4, the current through the resistor AB is 30 A 60 B. 42 Fig. 1-04 (a) 0.5 A (c) 0.167 A (b) 0.67 A (d) 0
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telegram-1978
asked
May 29, 2020
1
answer
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