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(chatquestion)...Lowest pk, is associated with СООН .COOH CH .COOH Br СООН OCH, A.
other
telegram-49279
asked
Jan 27, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...nd B - -4 pendicular t 3-i+j, th A and B. ents of a =: रा 274+36 J65 |স5 +ত বদ tontrgal मर्छकजा (osB- Ay 165 tosy- द्िम्टक ज drectHun al loK ine vectr 565 to Sum of पुर. ३ ३ ।
other
telegram-49277
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...and a scala. cation of a vector by a that angle between A and B b) In division of a vector by a scalar, that angle between A and C is zerc 1.8 ar Product of Two Vectors lon : The scalar product (or dot prc he angle between them. Thus if 49 oduct is written as Á- B= AB S Where F-force and S 33 GOLDEN calar, which is positive i. htuse (i.e. 90°<0s 18 B-B.A • Dot Cos0 167-63+58)+12+-R) 72-49+4R fesultentIR/of A-B Ans3 hen cos %3D i.e Pacallel to resurkint (R) I2-44tue unit vect 77-49+uR tanintn-stl TRI తో
other
telegram-49263
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...(V2) 24. A sinusoidal ac current passes through a resistor of resistance R in LCR series circuit. If phase difference between supplied voltage and supplied current is e and peak value of supplied current is I, then power dissipated in the circuit is :- TR A(1) EK cos e (2) IR (3) I;R Jo Cos
other
telegram-49242
asked
Jan 27, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...•Compound A, C,H O, is found to react with NaOI (produced by reacting Y with NaOH) and yield a yellow precipitate with characteristic smell. 1) A and Y are respectively 1Null CH,-OH and L (1) Н.С- CH,-CH,-OH and L e CH-CH, and L, (3) HO. CH, and L, (4) CH,-
other
telegram-49241
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...1. The x and y components of vector A are 4m and 6m respectively. The x and y components of vector A + B are 10m and 9m respectively. For the vector B calculate the following - (b) length and (a) x and y components (c) the angle it makes with x-axis 2. Find the directional cosines of vector (5i + 2j +6k). Also write the value of sum of squares of directional cosines of this vector. If Ā = 6î - 6j + 5k and B=î+ 2ĵ - k, then find a unit vector parallel to the resultant of Ā & B. Illust 3.
other
telegram-49227
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...In the given circuit all resistances are of value R ohm each. The equivalent resistance between A and B is : A www A- B.www (1) (2) 2R 3R 5R (3) 3 5R (4)
other
telegram-49224
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...33. Total number of geometrical isomers for [ PI(NH)(Br) (CI)(1)(NO,)(Py)]s (1) 6 (3) 10 34. Arrange the following metal Carbonyls in increasing (2) 36 (4) 15 order of bond length of CO INI(CO),1 [Co(CO),I. [Fe(CO),1 III (1) <I< I| (3) I< || < |II (2) < |II < || (4) 1I< |I<1
other
telegram-49200
asked
Jan 27, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...9T2sin°CT)+25
other
telegram-49181
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...ardeu of Rate of elefrophillic. Decreasing Substitution Reaufion. NO2 %23 ce (6)
other
telegram-49165
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...12. Time taken will be minimum when it travels from -A because of more average speed. to 2 T. So, t= = 2 s. %3D 12 12
other
telegram-49136
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...12. A particle is performing simple harmonic motion on a straight line with time period 12 second. The minimum time taken by particle to cover distance equal to amplitude will be (2) 2 s (1) 1 s (4) 4 s (3) 3 s
other
telegram-49124
asked
Jan 27, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...1t los (a) 1+Cos(?x)
other
telegram-49123
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...1 x' – -dx? log(x) What is
other
telegram-49001
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...36. Which of the following statements is not true about the complex ion [Pt(en),CL,]* ? (1) It has two geometrical isomers - cis and trans (2) Both the cis and trans isomers display optical activity. I (3) Only the cis isomer displays optical acitivity. (4) Only the cis isomer has non-superimposable mirror image.
other
telegram-48988
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...the probability that it is actuaiy OR Let a pair of dice be thrown and the random variable X be the sum of the numbers that oppear 14. on the two dice. Find the mean or expectation of X. SECTION: C Answer the following 15 to 18 questions as directed in the question. (Each question carries 4 marks.) 16 1 Matrix A = 1 15. then prove A -6A +5A +111 0 and from it derive A- 2. -3 -1 3. 9. An open box with square base is to be made of given quantity of card board of area C. 16. 10. WShow that the maximum volume of the box is cubic units. 6/3 OR Find two positive numbers x and y such that their sum is 35 and the product x²y is a maximum. 16. 1-VE dx; Find. VI+Vx 17. 8. In a city, 2% is the increasing rate of population then find the time in which popultion will ge double. (log 2 = 0.6932)
other
telegram-48976
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...the probability that it is actuaiy OR Let a pair of dice be thrown and the random variable X be the sum of the numbers that oppear 14. on the two dice. Find the mean or expectation of X. SECTION: C Answer the following 15 to 18 questions as directed in the question. (Each question carries 4 marks.) 16 1 Matrix A = 1 15. then prove A -6A +5A +111 0 and from it derive A- 2. -3 -1 3. 9. An open box with square base is to be made of given quantity of card board of area C. 16. 10. WShow that the maximum volume of the box is cubic units. 6/3 OR Find two positive numbers x and y such that their sum is 35 and the product x²y is a maximum. 16. 1-VE dx; Find. VI+Vx 17. 8. In a city, 2% is the increasing rate of population then find the time in which popultion will ge double. (log 2 = 0.6932)
other
telegram-48975
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Types of RNA polymerase required in nucleus of eukaryotes for RNA synthesis (a) 1 (b) 2 (d) 4. (c) 3
other
telegram-3211
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...soll alp 0f The pulleys and strings shown in the fig. are smooth and are of negligible mass. For the system to remain 53. in equilibrium, the angle 0 should be (2) 30° (1) 0° leno (4) 60° (3)45° nDuall
other
telegram-48954
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Extranuclear DNA is found in (a) lysosome and chloroplast (b) chloroplast and mitochondria (c) mitochondria and lysosome (d) Golgi body and E.R.
other
telegram-3208
asked
Jan 27, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...(a) 0.12 (b) 0.26 (c) 1.2 O 2016] (d) 0.37 (Given Planck's constant h= 6.6x10-34 J- s) 7. Two radioactive nuclei P and Q, in a given sample decay into a stable nucleus R. At time t=0, number of P species are 4 ition of 18 days No and that of Q are No . Half-life of P (for conversion to R) on was is 1 minute where as that of Q is 2 minutes. Initially there are for safe number no nuclei of R present in the sample. When number of nuclei of P and Q are equal, the number of nuclei of R present in safe for ) 2016] [CBSE PMT (Mains) 2011] the sample would be 5No A (a) (b) 2No 9No (d) 2. lo (c) 3No
other
telegram-48948
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Example 15.40 Two moles of helium gas undergo a cyclic process as shown in figure. Assuming the gas to be ideal calculate the following quantities in the process: (i) the net work done (ii) the net change in internal energy (iii) the net change in heat energy [R = 8.32 J mol¯'K 2 atm B 1 atm 300 K 400 K T Sol
other
telegram-48945
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...soll alp 0f The pulleys and strings shown in the fig. are smooth and are of negligible mass. For the system to remain 53. in equilibrium, the angle 0 should be (2) 30° (1) 0° leno (4) 60° (3)45° nDuall
other
telegram-48941
asked
Jan 27, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...A charge Q is given to a conducting sphere of radius R. Now if a charge -Q is placed, as shown, at a distance r from the centre, then magnitude of force of attraction between charges is -Q 1 Q? 1 Q2 (2) <- 4πε, r2 (1) .2 ΑπΕο r Q2 4TE, (r-RY 1 Q? (3) 4περ r2 (4)
other
telegram-48932
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...•P (A) a (C) 2a (B) a V2 (D) 3a A solid non-conducting sphere of Radius (24. R, having a spherical cavity of radius as shown, carries a uniformly distributed charge q. The electric field at the centre of the cavity is E. If there were no cavity and charge remains same (q), the field at the same point will be (A) E 3 (B) 4 (C) -E (D) None of these Quora Space for Roug
other
telegram-48928
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...25. Two parallel conducting plates of area A each, are placed at distance d. A third plate, identical with the first two is placed at a distance from one of the 3 plate as shown in figure. The capacitance of given arrangement is A SO. d/3 З60А (1) 3 E, A (2) 2 d EoA 98,A (4) 2d (3) 2d
other
telegram-48921
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...(4) 6R www P. B. 36. ) The resistance of the circuit between A and B is : B. 7s (3) 2r -(1) r (2) 0.5r (4) 3r
other
telegram-3194
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...23. A coil of inductance L is connected with two horizontal parallel conducting wire in field B. A conducting rod AB of mass m and length b which can slide without friction on the conductor as given in the diagram. When rod is given a velocity Vo, it performs simple harmonic motion. The time period of rod is Vo Bb mL (1) 27, Bb (2) 2n/mL 2/mL VmL (3) Bb Bb
other
telegram-48913
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...11. A hollow sphere is set into rolling without slipping as shown with angular velocity W, about centre of mass. Mass of sphere is M and radius is R. Then its kinetic energy is B.. INNENERRE RENNEEMR eoor A... (1) MoR? (2) MR?w 3. MoR? (4) (3) MuR? 3 3
other
telegram-48910
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...47 Major product of the following reaction is KOH >P(Major) Major product P is (1) (2) CH, = CH, (4) (3)
other
telegram-48907
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...CH,MgBr Cн, CH, Cu Н.о" 22. CH, 300°C B is (1) (CH,),CHO (2) CH, - C = CH – CH, CH, (3) (CH,),CHCOCH, unds (4) CH,C- CH, - CH,CH, diathyl ether 22
other
telegram-3165
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Roll No. Sub. Div. Particulars
other
telegram-3159
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...(3) (1)M CH, CH-CH,-Br 3. (1) KOH CHOH () ()но Product (C) is (3) (1) (Physical Phenols) (2) CH,-CH-CH,-CH-OH (3) он HQ (4) HO We Ethylene oxide when treated with Grignard reagent
other
telegram-3144
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...21. A rod of mass M and length L is kept on horizontal plane as shown. A force F is applied as shown. What should be x so that the hinge offers no reaction? 2L (2) 3 (1) Zero (4) L (3)
other
telegram-48903
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...6 PRO 1ERA The internal energy of an ideal gas follows the equation U =3.5 pV +k, where k is a constant. The gas expands from an initial volume of 0.25 m³ to a final volume of 0.86 m’. If the initial pressure is 5 Nm2, the change in internal energy (in Joules) is 3 (given pV3 = constant). 1.3 %3D
other
telegram-48900
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...80. A charge +q is placed at each of the points x=x0, x = 3x0, upto o on the x-axis, and a charge -q 6хо 5x0, is placed at each of the points x = ......... 2xo, x = 4x0, x = upto co. Here, xo is a positive constant. Take the electric potential at a point due to a charge Q at a ..... distance r from it to be Then, the potential (4περr) at the origin due to the above system of charges is (a) 0 (b) 8περν n2 q In 2 (d) ΑπερΧο (c)
other
telegram-48899
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...V2 Find the initial angular acceleration of the rod when the string A is just cut. 21 L/2 L14 3g 4g (2) 4L (1) 3L 7g 12g (4) 12L (3) 7L
other
telegram-48894
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...In the reaction sequence, С2Н, ОН C2H5 Cl + KCN H,ОФ →Y What is the molecular formula of Y? C3 H6 O2 C3 H;N C2H4O2 C2H6O
other
telegram-48892
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...62. Ice fish and Antartic fish remain active in extremely cold water due to (a) development of thick layer of sub-cutaneous fat (b) development of extra solute in body fluids (c) development of ice nucleating protein in extra cellular spaces (d) both (b) and (c).
other
telegram-3132
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Correct option (c) The rod CD will move upward and turn clockwise at the same time Explanation: Since the force on the rod CD is non-uniform it will experience force and torque. From the left hand side it can be seen that the force will be upward and torque is clockwise. i B
other
telegram-48883
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...-et/2 Ni Noe n- %3D N- N = Ne %3D 1-n= e-kt- '= 1t=-n) 1-x' = e
other
telegram-48871
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...23. Half life period of a radioactive sample is T. Let x fraction disintegrates in time 't'. How much Not fraction will decay in time (6) (1) (2) (4) 1– (/ī– x)
other
telegram-48860
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...An infinitely long straight conductor AB is fixed and a current is passed through it. Another movable straight wire CD of finite length and carrying current is held perpendicular to it and released. Neglect weight of the wire :- A Eo 12x8 (1) The rod CD will move upwards parallel to в itself (2) The rod CD will move downwards-parallel to itself (3) The rod CD will'move upward and turn clockwise at the same time The rod CD will move upward and turn anti-clockwise at the same time nir between the
other
telegram-48839
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Two persons A and B are standing at the two opposite ends of a plank of length 4 m as shown in the figure. Plank is kept on a frictionless horizontal surface. Displacement of plank, when A and B interchange their positions on the plank is b (Given mA 3. 40 kg, mg = 60 kg, mplank = 20 kg) %3D %3D re or od lw 4 m- (1) m (3) 4 (4) 3 2/3 45
other
telegram-48797
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...er Find the charge on capacitor C in the gi 31. circuit er. 12V off he 2uF 12 d) 8x2 (2) 18 µC (1) 12 µC 2(3) 20 µC (4) 14 HC
other
telegram-48794
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...Table 5.3: A Comparison between the Behaviour of Chromosome and Genes в Occur in pairs Occur in pairs Segregate at the time of gamete Segregate at gamete formation anda formation such that only one of each one of each pair is transmitted pair is transmitted to a gamete Independent pairs segregate One pair segregates independen independently of each other another pair Can you tell which of these columns A or B represent the chro and which represents the gene? How did you decide?
other
telegram-3130
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...18 о-сн, (1) НОCH,- СH Cн, CH; CH, - O 18 (2) Cн, - CH-CH, — CH,Ӧн (3) (4)
other
telegram-48782
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...37. Identify the product (B) in the following reaction 18 НОСH, -С-С-сH, - CH,OН + H2 Lindlar's H*/A →(B) Catalyst >(A).
other
telegram-48781
asked
Jan 26, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...If we hang a body of mass m with the cord, then tangential acceleration of disc is: (Mass of disc is M and radius R) 1. R. 2m 2M 12) (1) M+2m, M+2m 2M 2m (4) (3) m+2M m+2M lipping the
other
telegram-48771
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...According to figure, there a point P inside an uncharged conducting spherical shell, find the magnitude of electric field due to induced charge at P: 2. 2. RO kQ (3) kQ (4) R- (1) zero (2)
other
telegram-3128
asked
Jan 26, 2020
by
balaji.thirumalai
1
answer
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