Question
Question: A glass rod rubbed with silk is used to charge a gold leaf electroscope and the leaves are observed ...
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
The leaves will diverge further
Explanation
Solution
Charge on glass rod is positive, so charge on gold leaves will also be positive. Due to X-rays, more electrons from leaves will be emitted, so leaves becomes more positive and diverge further.