A particle of mass `'m'` and charge `'q'` is suspended from the ceiling with the help of an insulating wire of length `'l'`. It is placed in an uniform electric field as shown in figure. Then the time period of oscillation is
A
`sqrt((l)/(sqrt(g^(2)+((qE)/(m))^(2))))`
B
`2pisqrt((l)/(sqrt(g^(2)+((qE)/(m))^(2))))`
C
`2pisqrt((l)/(sqrt(g^(2)+((qE)/(m))))`
D
`2pisqrt((l)/(sqrt(g^(2)-((qE)/(m))^(2))))`
Text Solution
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The correct Answer is:
B
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