UPSC – N.D.A. & N.A. Exam (II), 2016 exam physics questions

<div dir="ltr" style="text-align: left;" trbidi="on">                                      <span style="font-size: large;">NDA exam physics questions</span><br /> <br /> <span style="font-size: large;"><i>(1)If a glass rod is rubbed with silk it acquire a positive charge because</i></span><br /> <span style="font-size: large;"><i>(a)Protons are added to it</i></span><br /> <span style="font-size: large;"><i>(b)Protons are removed from it</i></span><br /> <span style="font-size: large;"><i>(c)electrons are added to it</i></span><br /> <span style="font-size: large;"><i>(d)electrons are removed from it</i></span><br /> <span style="font-size: large;"><i><br /></i></span> <span style="font-size: large;"><i>(2)Which one of the following is the unit of electric charge</i></span><br /> <span style="font-size: large;"><i>(a)Coulomb</i></span><br /> <span style="font-size: large;"><i>(b)Newton</i></span><br /> <span style="font-size: large;"><i>(c)Volt</i></span><br /> <span style="font-size: large;"><i>(d)Coulomb/Volt</i></span><br /> <span style="font-size: large;"><i><br /></i></span> <span style="font-size: large;"><i>(3)When the distance between two charged particle is half the force between them becomes</i></span><br /> <span style="font-size: large;"><i>(a)One forth</i></span><br /> <span style="font-size: large;"><i>(b)one half</i></span><br /> <span style="font-size: large;"><i>(c)Double</i></span><br /> <span style="font-size: large;"><i>(d)Four times</i></span><br /> <span style="font-size: large;"><i><br /></i></span> <span style="font-size: large;"><i>(4)An electric  field can deflect</i></span><br /> <span style="font-size: large;"><i>(a)X-Rays</i></span><br /> <span style="font-size: large;"><i>(b)Neutrons</i></span><br /> <span style="font-size: large;"><i>(c)Alpha-Particles</i></span><br /> <span style="font-size: large;"><i>(d)gamma particles</i></span><br /> <span style="font-size: large;"><i><br /></i></span> <span style="font-size: large;"><i>(5)A surface enclosed an electric dipole the flux through the surface is</i></span><br /> <span style="font-size: large;"><i>(a)Infinite</i></span><br /> <span style="font-size: large;"><i>(b)positive</i></span><br /> <span style="font-size: large;"><i>(c)negative</i></span><br /> <span style="font-size: large;"><i>(d)Zero</i></span><br /> <span style="font-size: large;"><i><br /></i></span> <span style="font-size: large;"><i>(6)The ratio of electric field due to an electric dipole on its axis and on perpendicular bisector of dipole is</i></span><br /> <span style="font-size: large;"><i>(a)1;2</i></span><br /> <span style="font-size: large;"><i>(b)2;1</i></span><br /> <span style="font-size: large;"><i>(c)1;4</i></span><br /> <span style="font-size: large;"><i>(d)4;1</i></span><br /> <span style="font-size: large;"><i><br /></i></span> <span style="font-size: large;"><i>(7)If the distance between two electron is decrease then potential energy of system is</i></span><br /> <span style="font-size: large;"><i>(a)decrease</i></span><br /> <span style="font-size: large;"><i>(b)Increase</i></span><br /> <span style="font-size: large;"><i>(c)become 0</i></span><br /> <span style="font-size: large;"><i>(d)remain unchanged</i></span><br /> <span style="font-size: large;"><i><br /></i></span> <span style="font-size: large;"><i>(8)If an electric dipole is kept in a non-uniform electric field then it will experience</i></span><br /> <span style="font-size: large;"><i>(a)only torque</i></span><br /> <span style="font-size: large;"><i>(b)no torque</i></span><br /> <span style="font-size: large;"><i>(c)a resultant fource and torque</i></span><br /> <span style="font-size: large;"><i>(d)only a force</i></span><br /> <span style="font-size: large;"><i><br /></i></span> <span style="font-size: large;"><i>(9)The electric field out of hollow sphere is 5N/C, then electric field at centre is</i></span><br /> <span style="font-size: large;"><i>(a)0</i></span><br /> <span style="font-size: large;"><i>(b)greater than 5N/C</i></span><br /> <span style="font-size: large;"><i>(c)less then 5N/c</i></span><br /> <span style="font-size: large;"><i>(d)none</i></span><br /> <span style="font-size: large;"><i><br /></i></span> <span style="font-size: large;"><i>(10)An electric dipole in a uniform electric field experiences</i></span><br /> <span style="font-size: large;"><i>(a)force and torque both</i></span><br /> <span style="font-size: large;"><i>(b)force but no torque</i></span><br /> <span style="font-size: large;"><i>(c)torque but no force</i></span><br /> <span style="font-size: large;"><i>(d)no force and no torque</i></span><br /> <br /> <span style="font-size: large;"><b>ANSWERS-(1)d  (2)a (3)d (4)c (5)d (6)b (7)b (8)c  (9)a  (10)c</b></span><br /> <br /></div>

UPSC – N.D.A. & N.A. Exam (II), 2016 exam physics questions

                                      NDA exam physics questions (1)If a glass rod is rubbed with silk it acquire a positive charge becau...

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