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QJEEM19Ph5501: JEE Main 2019 Physics - Class 12 JEEM19Ph5501 Solution: A simple pendulum of length L is placed between the plates of a …

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 109 English

Multiple Choice Options

  • A 2πLg2−q2E2m2
  • B 2πL(g+qEm)
  • C 2πLg2+q2E2m2
  • D 2πL(g−qEm)

Step-by-Step Verified Solution

JEE Main 2019 (Online) 10th April Evening Slot Physics - Capacitor Question 109 English Explanation t=2πLgeff

⇒geff=g2+(gEm)2

⇒t=2πLg2+(qEm)2

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