Download NEET-UG 2013 Answer Key (Code - X) - Bansal Classes

Q.133 Artificial insemination means :(1) transfer of sperms of husband to a test tubecontaining ova(2) artificial introduction of sperms of a healthydonor into the vagina(3) introduction of sperms of a healthy donordirectly into the ovary(4) transfer of sperms of a healthy donor to atest tube containing ovaAns. 2Q.134 One of the representatives of PhylumArthropoda is :(1) silverfish (2) pufferfish(3) flying fish (4) cuttlefishAns. 1Q.135 Figure shows human urinary system withstructures labelledAto D. Select option whichcorrectly identifies them and gives theircharacteristics and/or functions.(1) B - Pelvis - broad funnel shaped spaceinner to hilum, directly connected to loopsof Henle.(2) C - Medulla - inner zone of kidney andcontains complete nephrons.(3) D - Cortex - outer part of kidney and donot contain any part of nephrons.(4) A - Adrenal gland - located at the anteriorpart of kidney. Secrete Catecholarrrineswhich stimulate glycogen breakdown.Ans. 4Q.136 A uniform force of ( 3î ĵ)newton acts on aparticle of mass 2kg. Hence the particle isdisplaced from position ( 2î kˆ ) meter toposition ( 4î 3ĵkˆ ) meter. The work doneby the force on the particle is :(1) 6 J (2) 13 J(3) 15 J (4) 9 JAns. 4Q.137 A,B,andCarethreepointsinauniformelectricfield. The electric potential is :BC(1) maximumat B(2) maximum at C(3) same at all the three pointsA, B and C(4) maximumatAAns. 1Q.138 Acoilofself-inductanceLisconnectedinserieswith a bulb B and anAC source. Brightness ofthe bulb decreases when :(1) number of turns in the coil is reduced.(2) a capacitance of reactance X C= X Lisincluded in the same circuit.(3) an iron rod is inserted in the coil.(4) frequency of theAC source is decreased.Ans. 3Q.139 Theupperhalfofaninclinedplaneofinclination isperfectlysmooth while lowerhalf is rough.Ablock startingfromrest at the topoftheplanewill again come to rest at the bottom, if thecoefficient of friction between the block andlower half of the plane is given by:Ans. 2(1) µ =2tan AE (2) µ 2 tan (3) µ = tan (4) µ =2tan