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Capacitor question

2019 · 10 Apr · Shift 2 · Q71
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  5. /2019 · 10 Apr · Shift 2 · Q71

Capacitor question

2019 · 10 Apr · Shift 2 · Q71

JEE MainPhysicsCapacitorMCQ+4 / −1
A simple pendulum of length L is placed between the plates of a parallel plate capacitor having electric field E, as shown in figure. Its bob has mass m and charge q. The time period of the pendulum is given by : JEE Main 2019 (Online) 10th April Evening Slot Physics - Capacitor Question 115 English
  1. A
    2πLg2−q2E2m22\pi \sqrt {{L \over {\sqrt {{g^2} - {{{q^2}{E^2}} \over {{m^2}}}} }}}2πg2−m2q2E2​​L​​
  2. B
    2πL(g+qEm)2\pi \sqrt {{L \over {\left( {g + {{qE} \over m}} \right)}}}2π(g+mqE​)L​​
  3. C
    2πLg2+q2E2m22\pi \sqrt {{L \over {\sqrt {{g^2} + {{{q^2}{E^2}} \over {{m^2}}}} }}}2πg2+m2q2E2​​L​​
  4. D
    2πL(g−qEm)2\pi \sqrt {{L \over {\left( {g - {{qE} \over m}} \right)}}}2π(g−mqE​)L​​
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