Practice Test for NET (7th) Like Tweet Pin it Share Share Email For a unit circle centred at origin x is a function of y y is a function of x Both of these None of these Continue >> An identity function is also Constant function Logarithmic function Linear function Exponential function Continue >> The point where f is neither increasing nor decreasing and f'(x)=0 at that point, point is called Stationary point Critical point Turning point inflexion point Continue >> The function f(x)=ax2+bx+c has min value if a>0 a<0 a<-1 a<-2 Continue >> Graph of y=x^3 does not contain Critical point Stationary point Point of inflexion Turning point Continue >> Identity function do not have Stationary point Turning point Critical point All of these Continue >> In rotation of axis, the coordinate axis are usually rotated about origin through------- angle obtuse acute right less than 45 Continue >> Slope of parabola y^2=4ax at any instant is 2y/a a/y 2a/y less than 1 Continue >> Every homogenous second degree eq ax2+2hxy+by2=0 represent a pair of lines, those lines will be real and incident if h2=ab h2 h2>ab h2<1 Continue >> If P divides the line segment AB externally, then P lies Between AB Between AP Beyond AB None Continue >> Line passing through points (-2,1) and (6,-4) is 5x+8y=2 5x+8y=-2 5x-8y=2 5x-8y=-2 Continue >> Point of intersection of lines 5x+7y=35 and 3x-7y=21 (7,7) (0,0) (7,0) (0,7) Continue >> Angle from the line with slope -7/3 to the line with slope 5/2 is 120 45 60 135 Continue >> If directed distances of AP and PB has same signs, then P divides AB Internally Externally Doesn't lie on AB None Continue >> The light emitted from LED has a wavelength 1.3 micron 1.2 micron 1.4 micron 1.5 micron Continue >> Which of the following optical fibers is used for long distance transmission without dispersion effect Single mode step index Multi mode step index Multi mode graded index All of them Continue >> A glass lens is dipped in water. Its power will Unchanged Decrease Increase Becomes infinite Continue >> To obtain parallel beam of headlight of a car it must be fitted with a Convex lens Concave lens Plane mirror Convex mirror Continue >> Longitudinal waves don't exhibit Polarization Reflection Refraction Diffraction Continue >> The equation used to determine the speed of light by Michelson was c=16f/T c=16d/T c=16T/f c=16d/f Continue >> Light appears to travel in a straight line because Its velocity is very large It is not absorbed by the surroundings Its wavelength is very small It is reflected by the surroundings Continue >> The resistance of shunt is Very small Very large May be small and large None of these Continue >> Nm/A is commonly called Gauss Volt Ampere Weber Continue >> Work done by magnetic force is Max Min 0 None of these Continue >> Lenz's law is in accordance with law of conservation of Mass Momentum Charge Energy Continue >> Which one is false for evaporation Surface phenomenon Continous Exothermic Cause cooling Continue >> Atomic emission spectra of an element can't be used to Identify the element calculate ionization of atom Determine number of proton of nucleus determine the mass Continue >> Which pair of molecules have debye forces in them Ar and Ar Argon and water Na+ ion and water water and water Continue >> When HCl is added to H2S aqueous solution, its ionization Decrease Increase Unchanged First increase and then decrease Continue >> Which form of phosphorous is more stable White black Red All of these Continue >> Which is a laughing gas N2O5 NO N204 N20 Continue >> Deficiency of Iodine in diet causes Goiter Beri Beri Rickets Blindness Continue >> TRYST : CLANDESTINE :: journey : leisurely glance : resentful reverie : dreamy expectation : hopeless Continue >> WITCH : COVEN ogre : castle seer : prophecy actor : troupe fairy : spell Continue >> PIGHEADED : YIELD :: lionhearted : retreat dogged : pursue featherbrained : giggle eagle-eyed : discern Continue >> Antonym of Dormant inert doff indulgence active Continue >> Antonym of embitter revere embalm alleviate void Continue >> Synonym of Agog Excited Lazy Anxious Bored Continue >> Synonym of curtail Increase widen shorten culvert Continue >> Synonym of crabbed tasty sweet sour salty Continue >> PLAY AGAIN !