Practice Test for NET (8th) Like Tweet Pin it Share Share Email Sum of 10 terms of the series where rth term is 3r+1 is 650 175 270 325 Continue >> Common ratio of G.P 1/a , 1/b , 1/c is sq-rt(a/c) - sq-rt(a/c) sq-rt(c/a) a & b Continue >> Product of n geometric mean between 1 and 2 is 2 sq-rt(2) ( sq-rt(2) )^n (2)^n/(n+1) Continue >> A.M of two positive numbers exceeds their positive G.M by 1/2 numbers are 9/2 , 16/2 2 , 16 9 , 16 1 , 4 Continue >> Series 4+2+1+1/2 + 1/4 + 1/8 ------ converges to 8 4 6 7 Continue >> 0.259259259......... = 258/999 259/999 257/999 260/999 Continue >> Interval of convergence for series 1 + 2x +4x^2 + ........ is ] -1/2 , 1/2 [ [ -1/2 , 1/2 ] [ 0 , 1/2 ] ] 0 , 1/2 [ Continue >> If A,G,H are arithmetic, Geometric and Harmonic mean between two numbers a and b then A^2=G*H G^2=A*H G^2=(G*H)^2 H^2=G*A Continue >> How many necklaces can be made of 2n+1 beads of different colour? n! 2n!/2! n!/2! (2n+1)!/2! Continue >> Partial sum of series 1+2+4+ ------ 2^(n-1) is 2^n 2^n + 1 2^n - 1 2^(n+1) Continue >> Graphs of trigonometric functions have Smooth curves Line segments Sharp corners Breaking point Continue >> For the line 4x+5y=3 , point (-2,4) lies Above on Below None Continue >> Condition for lines represented by ax2+2hxy+by2=0 to be coincident is h2=ab h2+ab=0 a+b=0 h=ab Continue >> The resistance of a 60 watt bulb in a 120 volt line is 20 ohm 0.5 ohm 240 ohm 2 ohm Continue >> The resistivity of a 1 m length of wire of iron as compared to the wire of same material of double the length is Same Smaller Greater Much greater Continue >> The terminal potential difference of a cell is greater than its emf, when it is on open circuit Being charged Being discharged both charged and discharged Continue >> When the ohmmeter measures the infinite resistance, its pointer lies at Centre of scale Left end of scale Right end of scale None of these Continue >> One Tesla is equal to 10^8 gauss 10^-4 gauss 10^-7 gauss 10^4 gauss Continue >> A current flows in a conductor from east to west. The direction of the magnetic field at a point above the conductor is towards East North west South Continue >> A dynamo converts Electrical energy into Mechanical energy Magnetic energy into Electrical energy Mechanical energy into Electrical energy None of these Continue >> When two inductors L1 and L2 are connected in parallel, the equivalent inductance is Less than both L1 and L2 L1+L2 Between L1 and L2 None of these Continue >> The armature current in a DC motor is max when the motor has Just been switched off Picked up max speed intermediate speed just started Continue >> Lenz's law don't violate the principle of conservation of mass energy Charge Momentum Continue >> Impedance is the combined effect of Resistance and Reactance Resistance and Inductance Capacitance and Inductance None of these Continue >> The min and max values of power factor in an AC circuit are respectively 1 & 1.5 1 & 2 0.1 & 1 0 & 1 Continue >> A gas which burn with blue flame CO2 N2 CO NO Continue >> What is the nature of solution of Borax Alkaline Acidic Neutral Corrosive Continue >> Sodium silicates dissolve in water the resulting solution is Acidic Basic Amphoteric Neutral Continue >> Chemical composition of fool's gold is FeS Fe2S3 FeS2 HgS Continue >> which compound is used in photography NaCl AgCl AgI AgBr Continue >> Which of the following is the strongest Acid HClO4 HClO3 HClO2 HClO Continue >> Max temperature on the open hearth process is 900 C 1200 C 1400 C 1600 C Continue >> ALACRITY : APATHETIC :: compliance : deft temerity : timid despotism : arrogant candor : bungling Continue >> DORY : VAN dairy : cow fish : vehicle freighter : caisson runners : wheels Continue >> SPIKE : TACK :: bullet : wound knife : cut arrow : bow spear : dart Continue >> TERMAGANT : SHREW virago : harpy anteater : mouse supporter : nag single : married Continue >> Synonym of Ameliorate Increase decrease Improve Amble Continue >> Synonym of Barterer trader shopkeeper leader Businessman Continue >> Antonym of fulminate clamour murmur Vain Efficacious Continue >> Antonym of salacious lustful lecherous succeed frigid Continue >> PLAY AGAIN !