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Sr No, , oO MON DO RF WN PB, , NPP RP PRP RP RP RRB, COC MAN OOK WN PO, , SYLLABUS - PHYSICS, FOR GROUP ‘X’ (TECHNICAL TRADES), , Topic, Physical World and Measurement, Kinematics, Laws of Motion, Work, Energy and Power, Motion of System of Particles and Rigid Body., Gravitation, Properties of Bulk Matter, Thermodynamics, Behaviour of Perfect Gases and Kinetic Theory of Gases., Oscillations and Waves, Electrostatics, Current Electricity, Magnetic Effects of Current and Magnetism, Electromagnetic Induction and Alternating Current, Electro Magnetic Waves, Optics, Dual Nature of Matter and Radiation, Atoms and Nuclei, Electronic Devices, , Communication Systems

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Q.15., , Q.16., , Q.17., , Q.18., , Q.19., , Q.20., , Q.21., , 3, , TPSaL AT aot fT ET ATT BVT Ue A Sa Pa eh TT Gaz ?, Through which mode of wave propagation, are the radio waves sent from one place to, another ?, , (A) {TT AAT / ground wave propagation, , (B) a a Fae / sky wave propagation, , (C) Hata at Far / space wave propagation, (D) Sw wT / all of the above, , Ans :D, Sy THIN cht A TTT aT SP, What is the wavelength range of visible light ?, (A) 4x10’ m-8x107 m (B) 4x10°m-8x10°m, (C) 4x10°m-8x10°m (D) 4x10" m-8x10"m, Ans:A, adie yearn Parca ar feria yer sar S 7, What is the dimensional formula for the universal gravitational constant ?, (A) M'LT? (B) M'ET* (C) M'PT? (D) M°LT°, Ans:A, , a Tet Sl HAT: h aa 2h Gas 4 Pra Gar S| SAH SMT SA dew Ves Ft fee Te a aT, SPT FAT SPT?, Two balls are dropped from heights h and 2h respectively. What would be the ratio of times, taken by the balls to reach the earth ?, (A) 2:1 (B) 1: V2 (C) 2:1 (D) 4:119, , Ans :B, , wa va Roy a 2 a Star star S a ated Gat 100 Fae | ale Sa Ae 2 AH a ae aT, When a spring is stretched by 2 cm, the energy stored is 100 J. If it is stretched further by, 2m, its energy increases by :, (A) 300 (B) 400 (C) 200 (D) 100, Ans:A, , , , OM GI OS Tara fost TAT Ue TTA EET?, At what temperature, will the surface tension of water, be minimum ?, (A) 0°C (B) 25°C (C) 60°C (D) 75°C, Ans :D, , Het St 2 Fei Hr aT AT: 1 AAT ST 1.5 TS | ST ree ara oma ar ay St HTT |, Diameters of 2 water drops are 1cm and 1.5 cm respectively. Find the ratio of excess, pressures inside them., (A) 4:1 (B) 5:3 (C) 3:2 (D) 2:3, , Ans:C

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Q.22., , Q.23., , Q.24., , Q.25., , am & fee wart ¥ aifeer yest (A =5898 A) ar FEET ect ST 92 Rest are Stet S | ale feat, BT TAIT (2 = 5461 A) ct TaPT He ST Ue Pesit at AAT art HAT |, In Young’s double slit experiment, using sodium light (4 =5898 A), 92 fringes are seen. If, another colour (2 =5461A) is used then find the number of fringes., (A) 62 (B) 99 (C) 67 (D) 85, , Ans :B, , A A Cet & Paya HAM: -10V Us +30V S | ale caret H ara Ht Sh 2 A a a wal Hae, fees eer St eT |, Two plates are at potentials -10V and +30V. If the separation between the plates is 2 cm, then find the electric field between them., (A) 2000 V/m (B) 1000 V/m (C) 500 V/m (D) 3000 Vim, , Ans:A, , feet genes Fag ar vetet Her & fete ale eet THIS | MT Oe eT eT eT ga Fat are, at qerestt at fetes erat |, , If red light is replaced by blue light illuminating the object in a microscope, the resolving, power of the microscope, , (A) a2 AIT / will decrease (B) 4S ATT / will increases, (C) wet a ATT / will get halved (D) avvafda tei /will remain unchanged, Ans:B, , 3 ye Re x G >, , facenftaa a eg a & a fae Sons ar gaa AM AM rT ?, Vv, , In gases of diatomic molecules, Find the ratio of the two specific heat of gases ce., v, , (A) 1.66 (B) 1.33 (C) 1.4 (D) 1.00, Ans:C