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Two small spheres each of mass m and charge q are tied from the same rigid support with the help of silk threads of length L . They make angle θ with the vertical as shown in the figure. If length L is decreased, then angle θ with the vertical

Options

  1. Aincreases
  2. Bdecreases
  3. Cunaffected
  4. Dcannot say

Correct answer

A. increases

Step-by-step solution

When length is decreased, distance between two charges decreases and so, the force of repulsion increases. So for equilibrium, θ also increases.

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