Question

)Rahul,a student of grade VIII, was performing an experiment with gold leaf
electroscope in the Physics Lab.He took a charged rod and brought it in
contact with the disc of the uncharged electroscope.
What will he observe and why?
(ii)Now, his friend Rohan touches the above electroscope with hand.What will
happen to the electroscope and why?
(iii)Why the gold leaves are kept inside a glass bottle in a gold leaf
electroscope?

Answer 1

Explanation:

i).The leaves of an electroscope collapse as soon as we touch the metal cap with hand because the leaves of the charged electroscope lose charge to the earth through our body. This process is known as EARTHING

ii).To protect the gold leaves from drafts of air they are typically enclosed in a glass bottle or glass-walled chamber, usually open at the bottom and mounted over a conductive base. They also capture charge leaking through the air that could accumulate on the glass walls, and increase the sensitivity of the instrument.

Answer 2

Answer:

good

Explanation:

very nice work he is doing I am proud of you Rahul