A pendulum having a negatively charged metal knob is oscillating on a positively charged surface. The time of the pendulum will be:

Question

Two identical point masses P and Q, suspended from two separate massless springs of spring constants $k_1$ and $k_2$, respectively, oscillate vertically. If their maximum velocities are the same, the ratio of the amplitude of P to the amplitude of Q is :

Answer 1

Oscillation of a charged pendulum over a charged surface results in an increased effective restoring force due to attraction between opposite charges. This causes: \begin{itemize} \item An amplified restoring force, leading to a higher angular frequency ($ \omega = \sqrt{\frac{g}{L}} $), \item A reduced time period ($ T = \frac{2\pi}{\omega} $). \end{itemize} Consequently, the pendulum's oscillation accelerates, shortening its time period. ---

A pendulum having a negatively charged metal knob is oscillating on a positively charged surface. The time of the pendulum will be:

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The Correct Option is B

Solution and Explanation

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