Recent questions tagged other

(chatquestion)...one on)o 1ayer dR - Spheve

asked May 19, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Rectangular Variation of electric potential (V) due to a charge spherical conducting system is shown in the figure. (A) electric energy density is zero from r= 0 to r = 10 cm region. (B) Electric flux through a spherical surface (10' volt) hyperpola 10 20 30 r (cm) 2 of radius r= 12 cm is -x 10-7c. (C) Electric potential energy of the system isx 104J 'D) Electric potential energy of the system is 1 x 10-4J

asked May 18, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Its approximate Kb. (A) 10-5 (B) 10-4 (C) 4.5 x 10-3 (D) 4.6 Determine the number of moles of AgI which may be dissolved in 1L, of 1 M CN solution. K sp for Agl and K [Ag(CN)2] are 1.2 x 10-7M2 and 7,1 x 1019 M-2 respectively. (A) 5.05 (B) 0.49 (С) 2.5 (D) 1.3 CaCO3 is heated in a closed vessel to establish the equilibrium, CaCO3(s) = CaO(s)+ CO2(g). The equilibrium allowed to shift in forward direction (A) By adding some CaC03 to the vessel. (B) By removing some CaO from the vessel.

asked May 18, 2020 by balaji.thirumalai

1 answer

(chatquestion)...A plane 2x +3y+5z 1 has a point P which is at a minimum distance from the line joining A(1,0,-3) and B(1,-5,7) then distance AP is equal to 1) 3/5 2) 2/5 3) 4/5 4) V5

asked May 18, 2020 by balaji.thirumalai

1 answer

(chatquestion)...27. ABCisa triangular plate of uni form thickness. The sides are in the ratio shown in the figure. IAg. IBc and Ia are the moments of inertia of the plate about AB, BC and CA as axes 3 respectively. Which one of the following relations is correct? ,90° B (a) IAB > IBC (b) IBC >IAB (c) IAB +1BC = 1CA (d) I ICA is maximum %3D

asked May 18, 2020 by balaji.thirumalai

1 answer

(chatquestion)...06. A car starting from rest, accelerates at the rate f through a distance S, then continues at constant speed for timet and then decelerates at the rate to come to rest. If the total distance 4 travclled is 13S, then : 1 1 1 (1) S= ft2 12) S= ft? 64 32 1 (3) S= ft2 16 (4) S = ft2 %3D 48

asked May 18, 2020 by balaji.thirumalai

1 answer

(chatquestion)...36.A conical vessel of height h and radius of plane surface r, is filled with liquid of density p. The net upward force on the curved surface is- (1) arhpg 2ar hpg (2) 3 ar hpg (3) (4) none of the above 3

asked May 18, 2020 by balaji.thirumalai

1 answer

(chatquestion)...35.A cylindrical vessel of radius r is filled with water. The sum of magnitude of force on the vertical walls of vessel is equal to the force on the bottom of vessel. The height of water in vessel is- (1) 2r (2) r (3) - (4) 4 2

asked May 18, 2020 by balaji.thirumalai

1 answer

(chatquestion)...62.A common hydrometer has a uniform stem graduated downwards from 0,1,2,... up to 10. When floating in pure water it reads 0 and in a liquid of relative density 1.4, it reads 10. Relative density of a liquid in which it reads 5, is- (1) 1.15 (3) 1.25 (2) 1.20 (4) 1.30

asked May 18, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Two cars A and B starts from'O' simultaneously with uniform speed V such that A is along diameter and B is along circular path of radiusRas shown in the figure. The velocity of B with respect to A after time is 2V O v2Vi – Vj O (V – VT) i – Vj O Vi + v2Vj O oi...(Plz explain this question)

asked May 18, 2020 by balaji.thirumalai

1 answer

(chatquestion)...2 1. Using elementary transformations find the inverse of 3 -4 3 If A = -1 verify that A² – 5A+71 = 0, hence find A 2

asked May 17, 2020 by balaji.thirumalai

1 answer

(chatquestion)...5 English- A + B Yellow NaOH ppt Identify D :- 50

asked May 17, 2020 by balaji.thirumalai

1 answer

(chatquestion)...A particle moving with constant speed turns left by an angle of 74° after travelling every 1 m distance. If it returns to its startine point after 18 sec, then the magnitude of average acceleration of the particle from it's initial position to just before it takes its second turn is (A) 30 m/sec" (B) 40 m/ sec? (C) 50 m/ sec² (D) 60 m/ sec A truck of width 2m is moving with a uniforn

asked May 17, 2020 by balaji.thirumalai

1 answer

(chatquestion)...37 If cos , COS T 57 7' COS are the roots of the equation ax+ bx² + cx + d=0 then (A) a+b+c= 0 (C) a +d 8 (B) b+c+d= -7 (D) a +b+d = 5

asked May 17, 2020 by balaji.thirumalai

1 answer

(chatquestion)...25.An U-tube is partially filled with water. Oil is next poured into one side, until water rises by 25.0 cm on the other side. Relative density of oil is 0.95. Height to which oil level will stand higher than water level, is- (1) 2.52 cm (2) 2.63 cm (3) 2.75 cm (4) 2.95 cm P20.95 Oil Water 254m

asked May 17, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Consider a homogeneous spring with rest length l = 11.3cm, stiffness k = 125kg ·s2 ¬1 placed on a horizontal pad. We fix one of its endpoints in place in such a way that the spring can still freely rotate around this endpoint. Then, we remove the pad. Calculate the difference between the total potential energy of the spring in its new equilibrium position and in the initial position. and linear density A = 9.7kg -m

asked May 16, 2020 by balaji.thirumalai

1 answer

(chatquestion)...12. Write the simplest form : Sin(tanx +cotx) "C VIG C VIG

asked May 16, 2020 by balaji.thirumalai

1 answer

(chatquestion)...4. If cos = 2 tan a find a

asked May 16, 2020 by balaji.thirumalai

0 answers

(chatquestion)...HCI...(With detailed soln plzz)

asked May 16, 2020 by balaji.thirumalai

0 answers

(chatquestion)...346(FG) 26 3. Explain the working of Zener diode with the help of diagram and write down its use. A potential barrier of 0-40 volt exists across a p-n junction. If the depletion region is 0:3 um wide, what is the intensity of electric field in this region ?

asked May 16, 2020 by balaji.thirumalai

1 answer

(chatquestion)...16) Show that the relation R in the set A of all the books in a library of a college, given by R = {(x, y): x and y have same number of pages} is an equivalence relation

asked May 16, 2020 by balaji.thirumalai

1 answer

(chatquestion)...15) Detine Signum function? Show that it is neither one-one nor onto

asked May 16, 2020 by balaji.thirumalai

1 answer

(chatquestion)...14) Check the function f(x) = x+ x, x eR is onto or not

asked May 16, 2020 by balaji.thirumalai

1 answer

(chatquestion)...13) Check the function f(x) = Vx ,xER is onto or not YAN

asked May 16, 2020 by balaji.thirumalai

0 answers

(chatquestion)...5T Explain the working of Zener diode with the help of diagram and write down its use. A potential barrier of 0-40 volt exists across a p-n junction. If the depletion region is 0-3 um wide, what is the intensity of electric field in this region ?

asked May 16, 2020 by balaji.thirumalai

0 answers

(chatquestion)...A particle moving with constant speed turns left by an angle of 74° after travelling every 1 m distance. If it returns to its startine point after 18 sec, then the magnitude of average acceleration of the particle from it's initial position to just before it takes its second turn is (A) 30 m/sec (B) 40 m/ sec? (C) 50 m/ sec2 77 (D) 60 m/ sec A truck of width 2m is moving with a uniforn

asked May 16, 2020 by balaji.thirumalai

0 answers