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 ______

पर्याय

• the divergence of leaves will not be affected.

• the leaves will diverge further.

• the leaves will collapse.

• the leaves will melt.

Answer 1

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 the leaves will diverge further.

Explanation:

Because the charge on the glass rod is positive, the charge on the gold leaves will be positive as well. Because X-rays cause more electrons to be emitted from leaves, the leaves become more positive and diverge further.