Question

A glass rod rubbed with silk is used to charge a gold leaf electroscope and the leaves are observed to diverge. The electroscope thus charged is exposed to X-rays for a short period. Then

• A. The divergence of leaves will not be affected
• B. The leaves will diverge further
• C. The leaves will collapse
• D. The leaves will melt

Answer 1

The correct option is A The leaves will diverge further

1. After rubbing with the silk glass rod charged positively.
2. The charge on the glass rod is positive, so the charge on gold leaves will also be positive.
3. Due to X-rays, more electrons from leaves will be emitted, so leaves become more positive and diverge further.