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(chatquestion)...45.Temperature of 1.5kg water is increased from 26.5°C to 27.5°C. The change in entropy of water is- (1) 2.0 cal/K (3) 10.0 cal/K (2) 5.0 cal/K (4) 15.0 cal/K

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Let M be a 3x3 orthogonal matrix. Let A be the 2x2 matrix in the upper- left corner of M and let B the 1x1 matrix in the lower - right corner of M. Let M, be the 3x3 matrix whose first 2 columns are first 2 columns of M and whose remaining 1 columns is the last column of I3. Let M2 be the 3x3 matrix whose first 2 columns identical to l3 and the last 1 columns those of M. Which of the following is(are) correct? (A) MM, = M, (B) M'M, = M, %3D %3D (C) det(M,-|det(M, )| (D) det(A)| - |det(B)|

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...A triangle ABC with vertices A = (2,5), B = (5,2) and C = (-1-1) inscribed on the curve xy - X-y-3 =0 and H = (a,a) is orthocenter. Let D, E and F be the feet of perpendiculars from A, B and C on BC, CA and AB respectively and inradius of ADEF isr then (A) Orthocenter of triangle ABC is (-1, -1) 13 (B) Equation of DE is x + y - 5 (C) r V2 units (D) r =V2 units

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...→ when distance &24.7 million the Earth the planot Jupiter isat a kilomotercs fro measived. the "its Abgular diameter is to be diameter 35-72°Aavea. caleulate Jupiter."

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...> One male le tumperaturer and" prersure olcupies 2.4 L (malar Volume). what is the scatio e halar Boluse to the atamil tolume Ay a (Take the size A Aydbragon hlelecule to be Abort 1A). why isthis tatio lo large2 Ah ideal. at standard. nale of hydenogu

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...A In the tcaetion ginen leloiw ,identify the species undergaing ox kluck o & reeduction

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...a How would you know whether a edox sleartioA acidic / alkaline C is taking place in an neutral medium 2

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Question 5: Prove that: sin x +sin 3x + sin5x+sin 7x-4cos xcos 2xsin 4x

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Question 3: A wheel makes 360 revolutions in one minute. Through how many radians does it turn in one second?

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Question No.11 Bookmark How much of copper will be liberated during electrolysis when 5 coulomb charge is passed through it? Assume the ECE of copper is 9.8mg /cc. 4.9 g - (Alternative 2) 1.96 mg - (Alternative 3 ) 19.6 mg - (Alternative 4 ) 49 mg - (Alternative 1)

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Question No.2 1.00 Bookmark O Find the odd letter from the given series H, W, L, Q, U, D, P O P- (Alternative 4) O W - (Alternative 1) O U- (Alternative 3) O D- (Alternative 2) Question No 3 1.00

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Let f: [0, 1] → R be continuously differentiable function and f (0) +f(1) 41. <a max f'(x), then a can be xe [0, 1] 1 (A) 4 1 (B) 3 (C) 10 (D) 1

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...te then the valwe ö cis 2. 1タ112 13) 1丘しk10) 1

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Question No.2 1.00 Bookmark O Find the odd letter from the given series H, W, L, Q, U, D, P O P- (Alternative 4) O W - (Alternative 1) O U- (Alternative 3) O D- (Alternative 2) Question No 3 1.00

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Question No.67 What is the capacity of a battery which can deliver a current of 2.5 Amps continuously for and 30 minutes? 5 AH - (Alternative 4 ) 7.5 AH - (Alternative 2 ) 5.75 AH - (Alternative 1 ) www.ALLEXAMREVIEW.COM O 6.25 AH - (Alternative 3 )

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...A train runs along an unbanked circular track of radius 30 m at a speed of 54 kmvh. The mass of the train is 10 kg- What provides the centripetal force required for this purpose - The engine or the rails? What is the angle of banking required to prevent wearing out of the rail?

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Write the degree of each of the following polynomials: ()5x+4x +7x (i) 4-y (ii) 5t-7 (iv) 3

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...Check whether 7 + 3x is a factor of 3x + 7x.

asked Jun 6, 2020 by balaji.thirumalai

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(chatquestion)...19. The IUPAC name for the compound H2C is :- CH-CH3 (1) Propylene oxide (2) 1,2-Охоргорane (3) 1,2-Ерохургoрane (4) 1,2-Propoxide

asked Jun 5, 2020 by balaji.thirumalai

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(chatquestion)...6. IUPAC Name of: HO- (1) Phenyl m-hydroxy benzoate (2) 3-Phenoxy carbonyl phenol (3) Phenyl-3-hydroxy benzoate (4) None of these

asked Jun 5, 2020 by balaji.thirumalai

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(chatquestion)...6:09 PM 0.0KB/s 42 Guriya Today, 4:34 pm 22 Draw the graph of fx) =-Ix1+3 फलन ॥x) = -1x1+3 का आलेख रखीचिए।

asked Jun 5, 2020 by balaji.thirumalai

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(chatquestion)...Q Seleit the coorect metch :- ) Alec Seffreys Sitreptocaccue pheumoniae 1) TMV Mad tha chase 3) Matthew Meselson. and F. Stahl Pisum Sativum Lac opeson Jacques Munod

asked Jun 5, 2020 by balaji.thirumalai

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(chatquestion)...A Amony the fallowing sets zamples fa divegent optiur:- evalition select the incoare D Forelimbs 2) Heart Jbct man and cheetah baut and cheetoh man 3232ain hat man I cheetah 38/octopus kat a man

asked Jun 5, 2020 by balaji.thirumalai

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(chatquestion)...TX 57. In stationary wave y = 4 sin cos 96 t (x 15 and y in cm) The distance between node and the next antinode is: a. 7.5 cm b. 15 cm с. 22.5 cm d. 30 cm...(Please solve this)

asked Jun 5, 2020 by balaji.thirumalai

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(chatquestion)...Q Cenpus biteu pnanty hasa log Howeved take place,t umaing dues not achve anly for 0-12 days Explain.

asked Jun 5, 2020 by balaji.thirumalai

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(chatquestion)...* Gr e the major product of the following reaction LIAIH, inemopnens CH3 四 3 4. Treatment of two equivalent of ethylacetate with one equivalent of sodium ethoxide gives inte of an aldehyde to (1), following by an acid quench, affords which product ? NaOEt H* > Product ? 2.0 Quench H,C OEt Ch...(Any one tell me how to solve this)

asked Jun 5, 2020 by balaji.thirumalai

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(chatquestion)...Let f: R → Rbe a thrice differentiable function such that f(x), f'(x), f"(x) and f"(x) are positive Vx e R. Moreover, f"(x) < f(x) X e R, then (A) f'(x) < 2f(x) V x e R 1 3 3 (B) f'(x) < f(x) vx e R (C) f'(x) <f(x) X E R (D) f'(x) < 3f(x) V x e R

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...a estimate the sodium 2.57.Compare t with the clensidy codium D Ane the twe densities magnitude> if sowhy ? avetye mass *** uming di dosity atom be ndi enstalline phause s 970hc ms the same rd

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...0.Calculate radiution ehergy 2mole whose 14 is SXI0 H2

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...(A) (B) 15 20 25 30 (D) 6. A train is travelling at a speed of vo. Then it decelerates uniformly during a time of t to finally stop. In one of the wagons there is a small object on the floor. The wagon long enough, so that the object does not collide with any of the walls of the wagon. l is the distance covered by the object on the floor (with respect to train) , u is the coefficient of friction between the floor of the wagon and the object. (A) Vo < ug, l = 0 If vő ugt? 4µg Vo (B) If > ug, l = t 4 Vo (C) If > µg, l = 0 Vo > µg, l = Vot 2µg (D) If A particle is projected from a given point with a given velocity v = 10 m/s and after hitting a smooth vertical wall returns to the point from which it started. The distance of the initial point from 7.

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...e* +e* If eCx Vx e R, then c can be 42. 2 1 (A) 1 (B) 2, 1 (C) e (D) 1 VI

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...Let f: [0, 1] → R be continuously differentiable function and f (0) +f(1) 41. <a max f'(x), then a can be xe [0, 1] 1 (A) 4 1 (B) 3 (C) 10 (D) 1

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...Let f: [0, 1] → R be continuously differentiable function and f (0) +f(1) 41. <a max f'(x), then a can be xe [0, 1] 1 (A) 4 1 (B) 3 (C) 10 (D) 1

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...1 PCG,3), Q(3,7) and R(4,2) A are three points in a plans. is the midicint ų QR' and B is the 'foot of the perpendicudan from Q to' PR. Find: ☺ the corelinates of A; the lines PA the equations of and QB: © the point intersecfibn o to the lines PA and QB; the line Q and panallel ® the equation f passing through to thi' line PR.

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...っどtyetスyニ 19. つピーty?ースyこチ %3D 2....(Please help solve this question)

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...3.78. Near the point A (Fig. 3.10) lying on the boundary between glass and vacuum the electric field strength in vacuum is equal to 10.0 V/m, the angle between the vector E, and the normal E, n of the boundary line being equal to a, = 30°. Find the field streng E in glass near the point A, the angle a between the vector E and a as well as the surface density of the bound charges at the point A. 319. Near the nlane e %3D Eo Fig. 3.10.

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...A uniform plate of mass m having equilateral triangular cross-section of side length l is placed at the edge of an obstacle inside a cart which is made to accelerate rightward with constant acceleration ao as shown, and obstacle can apply reaction in horizontal direction only. On the basis of above information, answer the following question (force Fis applied horizontally at the apex of plates to keep it in equilibrium). A上 Obstacle Question : If Nx and Ny are the contact forces by obstacle and floor respectively when applied force is equal as calculate in Q.12, then A 2ao = m V3 3 Correct Answer Ny = mg Correct Answer Nx = mg 2ao Ny = m 3...(Photo from Prem Sai)

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...A uniform plate of mass m having equilateral triangular cross-section of side length 1 is placed at the edge of an obstacle inside a cart which is made to accelerate rightward with constant acceleration ao as shown, and obstacle can apply reaction in horizontal direction only. On the basis of above information, answer the following question (force F is applied horizontally at the apex of plates to keep it in equilibrium). Obstacle Question : If applied force F is large enough to just tilt the plate, then A ao F = m 3 Correct Answer (융 +음) ao F = 3 Vector sum of torque of weight and force F is zero (about obstacle) Vector sum of torque of weight and force F is non-zero (about obstacle) Correct Answer (Your Answer)...(Photo from Prem Sai)

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...Jio 4G O K/s .ll 721 3:25 pm TEST FEEDBACK Q.12 LINKED COMPREHENSION MULTIPLE CHOICE A uniform plate of mass m having equilateral triangular cross-section of side length l is placed at the edge of an obstacle inside a cart which is made to accelerate rightward with constant acceleration ao as shown, and obstacle can apply reaction in horizontal direction only. On the basis of above information, answer the following question (force F is applied horizontally at the apex of plates to keep it in equilibrium). YA Obstacle Question : If applied force F is large enough to just tilt the plate, then A F = m + Correct Answer F = m Vector sum of torque of weight and force F is zero (about obstacle) Vector sum of torque of weight and force F is non-zero (about obstacle) Correct Answer (Your Answer) EXPLANATION Hint: PREVIOUS NEXT powered bye EMBIBE

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...The magnetic potential energy stored in a certain inductor is 25 mJ, when the current in the inductor is 60 mA. This inductor is of inductance (1) 0.138 H (2) 138.88 H (3) 1.389 H (4) 13.89 H

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...In which case is number of molecules of water maximum? (1) 18 mL of water (2) 0.18 g of water (3) 0.00224 L of water vapours at 1 atm and 273 K (4) 10-3 mol of water

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...For the redox reaction Mno, + C,0 +H* →Mn²* +CO, +H20 The correct coefficients of the reactants for the balanced equation are MnO, C203 (1) 16 2 (2) 2 16 (3) 2 16 (4) 5 16

asked Jun 4, 2020 by balaji.thirumalai

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(chatquestion)...Date. Pege. Solve the Falloing quadratic Equation for X: 428+4 bx- @? -be)=0

asked Jun 3, 2020 by balaji.thirumalai

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(chatquestion)...What is value of current I in given circuit 1 k2 Vz= 6V4 16 VF A 6 mA 10 mA C 4 mA Correct Answer B...(Hey !I know it's a very easy question but still mera answer 8 aarha h...

asked Jun 3, 2020 by balaji.thirumalai

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(chatquestion)...Date. Page. Find the ralue oF K such the pallynomial x2-(k+6) has that x+2 (३५-1)। sum of its equal to haf of their zeros product!

asked Jun 3, 2020 by balaji.thirumalai

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(chatquestion)...Date. I Page. Find the yalus of (sin 38t sin?sl

asked Jun 3, 2020 by balaji.thirumalai

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(chatquestion)...&-In the figure a potential of + 1200 V is given to point A and point B is earthed, what is the potential at the point P 4 μF 3 μF B P 2 μF (а) 100 V (b) 200 V (c) 400 V (d) 600 V

asked Jun 3, 2020 by balaji.thirumalai

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(chatquestion)...Question .36 M.M 4.00 N.M 1.00 A thick plano convex lens is silvered at both surfaces. A point source of light 'S is placed inside the lens at a distance of 2 cm from curved surface having radius of 8 cm 3 curvature as shown in the figure. If the images formed due to direct reflections from the plane and curved surface coincide then the thickness of the lens is NEXT >

asked Jun 3, 2020 by balaji.thirumalai

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(chatquestion)...CH, H,C-C-CH, +HNO; (A) (Nitro compound) (Conc.) The compound is CH; CH, H;C-C-CH, Question H,C -C-CH, -NO,2. 1. NO, CH; NO, H,C-C-CH, 3. 4. NO,

asked Jun 3, 2020 by balaji.thirumalai

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(chatquestion)...A He* ion is at rest and is in ground state. A neutron with initial kinetic energy K collides head on with the He* ion. For which value of K collision between these two particle may be inelastic? 40.8 eV A 48.3 eV B 20.3 eV C Correct Answer 52 eV

asked Jun 3, 2020 by balaji.thirumalai

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