Physics · 2021
JEE Main · 27 July 2021, Shift 2 · Q1
A simple pendulum of mass ' m ', length ' l ' and charge ' +q ' suspended in the electric field produced by two conducting parallel plates as shown.…
A simple pendulum of mass ' $\displaystyle m$ ', length ' $\displaystyle l$ ' and charge ' $\displaystyle +q$ ' suspended in the electric field produced by two conducting parallel plates as shown. The value of deflection of pendulum in equilibrium position will be :
Official answer
(2)
$\displaystyle \tan ^{-1}\left[\frac{q}{m g} \times \frac{\mathrm{C}_2\left(\mathrm{~V}_1+\mathrm{V}_2\right)}{\left(\mathrm{C}_1+C_2\right)(d-t)}\right]$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.