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A particle of mass `10gm` is placed in a potential field given by `V = (50x^(2) + 100)J//kg`. The frequency of oscilltion in `cycle//sec` isA. `(10)/(pi)`B. `(5)/(pi)`C. `(100)/(pi)`D. `(50)/(pi)` |
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Answer» Correct Answer - B Potential energy `U = mV` ` rArr U = (50x^(2) + 100)10^(-2)` `F = (dU)/(dx) = (- 100x)10^(-2)` `rArr m omega^(2)x = -(100 xx 10^(-2))x` ` 10 xx 10^(-3) omega^(2) x = 100 xx 10^(-2)x` `rArr omega^(2) = 100 :. omega = 10` `rArr f = (omega)/(2pi) = (10)/(2pi) = (5)/(pi)` |
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