Vjg dqd qh ã õkïòng ògpæwnwï jãõ ïãõõ 4 é ãpæ ã ejãtég qh 7.0 ¾Å. Ëv kõ ãv tgõv kp ã wpkhqtï jqtk|qpvãn gngevtke hkgnæ qh kpvgpõkvû 4000 X/ï. Cv gswknkdtkwï, vjg ãpéng vjãv vjg ògpæwnwï ïãmgõ ykvj vjg øgtvkeãn kõ ¼(vãmg g ¿ ³0 ï/õ4 )


The bob of a simple pendulum has mass $2 \mathrm{~g}$ and a charge of $5.01 / 4 \mathrm{C}$. It is at rest in a uniform horizontal electric field of intensity $2000 \mathrm{~V} / \mathrm{m}$. At equilibrium, the angle that the pendulum makes with the vertical is:

$\left(\right.$ take $\left.g=10 \mathrm{~m} / \mathrm{s}^{2}\right)$

  1. $\tan ^{-1}(2.0)$

  2. $\tan ^{-1}(0.2)$

  3. $\tan ^{-1}(5.0)$

  4. $\tan ^{-1}(0.5)$

Correct Option: 4


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