A gold leaf electroscope is negatively charged and the leaves are observed to diverge by a certain amount. A beam of x-ray is allowed to fall upon the electroscope for a short period. The effect is as follows
A. The leaves will diverge further
B. There will be no change in the diverge
C. The leaves will collapse
D. The gold leaves will melt
Answer
289.8k+ views
Hint: We have to know about the gold leaf telescope to examine what happens when an x-ray beam is allowed to fall upon the electroscope.
Complete step by step answer:
An electroscope consists of a vertical metal rod that sticks out of a glass container; a strip of plastic stops the electrical charge from moving to the cylindrical container, which is normally metal, from the metal rod and metal leaves at the bottom.
Gold leaf electroscope- In a vacuumed glass jar and attached to a metal seal, the gold leaf electroscope has two gold leaves suspended from a metal stem. With the aid of a metal foil, the glass is grounded to keep it uncharged. It is possible to use it for: charge detection.
Charge detection: the body being examined under a gold leaf electroscope is touched by a metal cap. The body is charged if the leaves diverge, and if there is no impact on the leaves, then the body is not charged.
In this question, since the gold leaf electroscope is negatively charged, it can ionise the air around the gold leaf electroscope as the x-ray beam is allowed to land on the electroscope, as x-rays are the ionising radiation. As a consequence, the positive ions from the neighbouring environment would be drawn by negatively charged leaves and then discharged. The leaves will fall, as now there is no charge on the gold leaves.
Hence, option C is correct.
Note:We should be careful while using a gold leaf electroscope. The charge should be given from above and the sideways since it can make the gold leaves fall off.
Complete step by step answer:
An electroscope consists of a vertical metal rod that sticks out of a glass container; a strip of plastic stops the electrical charge from moving to the cylindrical container, which is normally metal, from the metal rod and metal leaves at the bottom.
Gold leaf electroscope- In a vacuumed glass jar and attached to a metal seal, the gold leaf electroscope has two gold leaves suspended from a metal stem. With the aid of a metal foil, the glass is grounded to keep it uncharged. It is possible to use it for: charge detection.
Charge detection: the body being examined under a gold leaf electroscope is touched by a metal cap. The body is charged if the leaves diverge, and if there is no impact on the leaves, then the body is not charged.
In this question, since the gold leaf electroscope is negatively charged, it can ionise the air around the gold leaf electroscope as the x-ray beam is allowed to land on the electroscope, as x-rays are the ionising radiation. As a consequence, the positive ions from the neighbouring environment would be drawn by negatively charged leaves and then discharged. The leaves will fall, as now there is no charge on the gold leaves.
Hence, option C is correct.
Note:We should be careful while using a gold leaf electroscope. The charge should be given from above and the sideways since it can make the gold leaves fall off.
Last updated date: 01st Jun 2023
•
Total views: 289.8k
•
Views today: 6.46k
Recently Updated Pages
Most eubacterial antibiotics are obtained from A Rhizobium class 12 biology NEET_UG

Salamin bioinsecticides have been extracted from A class 12 biology NEET_UG

Which of the following statements regarding Baculoviruses class 12 biology NEET_UG

Sewage or municipal sewer pipes should not be directly class 12 biology NEET_UG

Sewage purification is performed by A Microbes B Fertilisers class 12 biology NEET_UG

Enzyme immobilisation is Aconversion of an active enzyme class 12 biology NEET_UG

Trending doubts
Difference Between Plant Cell and Animal Cell

Write an application to the principal requesting five class 10 english CBSE

Ray optics is valid when characteristic dimensions class 12 physics CBSE

Give 10 examples for herbs , shrubs , climbers , creepers

Write the 6 fundamental rights of India and explain in detail

Write a letter to the principal requesting him to grant class 10 english CBSE

List out three methods of soil conservation

Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE

Write a letter to the Principal of your school to plead class 10 english CBSE
