The bob of a simple pendulum has mass 2 g and a charge of 
. It is at rest in a uniform. It is at rest in a uniform horizontal electric field of intensity 2000V/m. At equilibrium, the angle that the pendulum makes with the vertical is: (take 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
JEE Main 2019
At equilibrium resultant force on bob must be zero, so
… (i)
… (ii)
Solving (i) and (ii) we get, 
[Here, 
]
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