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### Charles University Test Center In India

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### If (a^n1+ B^n+1) / (a^n + B^n) Be The A.M. Of A And B, Then N=

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### If Three Real Number A,b,c, Are In Harmonic Progression, Then Wich Of The Following Is True

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Modified 13 Days 19 Hour 12 Minutes Ago Dan

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### If Sn =nP + 1/2 N (n-1)Q , Where Sn Denotes The Sum Of The First N Terms Of An A.P. , Then The Common Difference Is

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Modified 13 Days 19 Hour 13 Minutes Ago Lucas

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### If The A.M. Is Twice The G.M. Of The Number A And B , Then A:b Will Be

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### If A^,b^,c^ Are In A.P., Then Which Of The Following Is Also In

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### If A1, A2 ......an Are Positive Numbers Such That A1,a2.......an=1, Then Their Sum Is

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### The Mean Of The Series A , A+nd. A+2nd Is

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### A Boys Goes To School From His Home At A Speed Of X Km/hour And Comes Back At A Speed Of Y Km/hour, Then The Average Speed Is Given By

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Modified 13 Days 19 Hour 32 Minutes Ago Julia

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### If A,b,c Are In A.P. , Then 2^ax+1 , 2^bx+1, 2^cx+1 , X Is Not = 0 Are In

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Modified 13 Days 19 Hour 36 Minutes Ago Nicola

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### If A,b,c Are The Positive Integers, Then (a+b)(b+c)(c+a) Is

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Modified 13 Days 19 Hour 39 Minutes Ago Luke

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### If G1 And G2 Are Two Geometric Means And A The Arithmetic Mean Inserted Between Two Numbers, Then The Value OfÂ  G1^2/G2Â  +Â G2^2/G1 Is

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Modified 13 Days 19 Hour 41 Minutes Ago Liam

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### Two Identical Charged Spheres Suspended From A Common Point By Two Massless Strings Of Lengths L, Are Initially At A Distance D (d <

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Modified 13 Days 19 Hour 42 Minutes Ago Nirav

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### If Y=x-x^2+x^3-x^4+.....infinite, Then Value Of X Will Be

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### Which Of The Following Will Represent Coulumbs Law

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### Identify The Wrong Statement In The Following. Coulumbs Law Correctly Describe The Electric Force That

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### Four Metal Conductors Having Different Shapes 1. A Sphere 2. Cylindrical 3. Pear 4. Lightning Conductor Are Mounted On Insulating Stands And Charged. The One Which Is Best Suited To Retain The Charges

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Modified 13 Days 19 Hour 52 Minutes Ago Grace

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### The Top Of The Atmosphere Is At About 400kV With Respect To The Surface Of Earth, Corresponding To An Electric Field That Decreases With Altitude. Near The Surface Of Earth, The Field Is About 100 Vm

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Modified 13 Days 19 Hour 57 Minutes Ago Anna

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### An Infinite Number Of Charges, Each Of Charge 1 MuC, Are Placed On The X-axis With Co-ordinates X = 1,2,4,8,...... Infinite. If A Charge Of 1C Is Kept At The Origin, Then What Is The Net Force Acting

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### If Sum Of N Terms Of An A.P. Is 3n^2+5n And Tm = 164 Then M=

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Modified 13 Days 20 Hour 1 Minutes Ago Leah

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### If A1, A2,are The Two A.M.s Between Two Numbers A And B And G1, G2 Be Two G.M.s Between Same Two Numbers, Then

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Modified 13 Days 20 Hour 6 Minutes Ago Peter

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### Two Charges Of Equal Magnitudes And At A Distance R Exert A Force F On Each Other. If The Charges Are Halved And Distance Between Them Is Doubled, Then The New Force Acting On Each Charge Is

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Modified 13 Days 20 Hour 7 Minutes Ago Stephen

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### Two Equally Charged, Identical Metal Spheres A And B Repel Each Other With A Force F The Spheres Are Kept Fixed With A Distance R Between Them. A Third Identical, But Uncharged Sphere C Is Brought In

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Modified 13 Days 20 Hour 11 Minutes Ago Austin

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### The Harmonic Mean Between Two Numbers Is 14 2/5 And The Geometric Mean 24 .The Greater Number Between Them Is

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Modified 13 Days 20 Hour 12 Minutes Ago Mary

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### If A/b , B/c , C/a Are In H.P. , Then

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Modified 13 Days 20 Hour 14 Minutes Ago Christian

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### Two Identical Spheres Carrying Charges -9muC And 5muC Respectively Are Kept In Contact And Then Separated From Each Other. Point Out True Statement From The Following. In Each Sphere

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Modified 13 Days 20 Hour 16 Minutes Ago Blake

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### The Ratio Of Electrostatic And Gravitational Forces Acting Between Electron And Proton Seperated By A Distance 5*10 Power -11m, Wil Be (charge On Electron = 1.6*10 Power -19 C, Mass Of Electron =

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Modified 13 Days 20 Hour 21 Minutes Ago Jessica

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### The Sum Of N Terms  Of The Series (1/1+root3) + (1/root3+root5) + (1/root5 +root7) .......is

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Modified 13 Days 20 Hour 21 Minutes Ago Lily

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### The Sum Of N TermsÂ  Of The Series (1/1+root3) + (1/root3+root5) + (1/root5 +root7) .......is

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Modified 13 Days 20 Hour 24 Minutes Ago Anna

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