
How are cathode rays produced? Briefly explain their important properties.
Answer
444.3k+ views
2 likes
Hint :When cathode rays strike glass or some other materials, they produce green fluorescence. They are deflected from their straight path towards the positive plate of the electric field, whenever an electric field or magnetic field is applied on the cathode rays. This proves that cathode rays are negatively charged particles.
Complete Step By Step Answer:
Cathode rays come out from the cathode as the cathode is charged negatively. So, these rays strike and ionize the gas sample present inside the container. The electrons which are ejected from gas ionization travel towards the anode. These rays are electrons which are produced from the gas ionization inside the tube.
Important properties of cathode rays:
Property 1: Cathode rays travel in a straight line and they can cast sharp shadows.
Property 2: They are negatively charged.
Property 3: Electric and magnetic fields deflect cathode rays.
Property 4: They are produced at the cathode and travel to the anode in a vacuum tube.
Property 5: Their properties do not depend on the electrodes and the gas used in the vacuum tube.
Property 6: The speed of cathode rays is slower than that of light.
Property 7: The objects which are hit by cathode rays get heated.
Property 8: Cathode rays are capable of penetrating through thin metal plates.
Property 9: Phosphors generally glow when cathode rays fall on them.
Property 10: Gas gets ionized by these rays.
Property 11: Cathode rays are times lighter than hydrogen.
Note :
Cathode rays are also known as electron beams or an e-beam. These are streams of electrons observed in the vacuum tubes. The images in television are created by a focused beam of electrons deflected by electric or magnetic fields in cathode ray tubes.
Complete Step By Step Answer:
Cathode rays come out from the cathode as the cathode is charged negatively. So, these rays strike and ionize the gas sample present inside the container. The electrons which are ejected from gas ionization travel towards the anode. These rays are electrons which are produced from the gas ionization inside the tube.
Important properties of cathode rays:
Property 1: Cathode rays travel in a straight line and they can cast sharp shadows.
Property 2: They are negatively charged.
Property 3: Electric and magnetic fields deflect cathode rays.
Property 4: They are produced at the cathode and travel to the anode in a vacuum tube.
Property 5: Their properties do not depend on the electrodes and the gas used in the vacuum tube.
Property 6: The speed of cathode rays is slower than that of light.
Property 7: The objects which are hit by cathode rays get heated.
Property 8: Cathode rays are capable of penetrating through thin metal plates.
Property 9: Phosphors generally glow when cathode rays fall on them.
Property 10: Gas gets ionized by these rays.
Property 11: Cathode rays are
Note :
Cathode rays are also known as electron beams or an e-beam. These are streams of electrons observed in the vacuum tubes. The images in television are created by a focused beam of electrons deflected by electric or magnetic fields in cathode ray tubes.
Latest Vedantu courses for you
Grade 11 Science PCM | CBSE | SCHOOL | English
CBSE (2025-26)
School Full course for CBSE students
₹41,848 per year
Recently Updated Pages
Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 Computer Science: Engaging Questions & Answers for Success

Master Class 11 English: Engaging Questions & Answers for Success

Master Class 11 Maths: Engaging Questions & Answers for Success

Trending doubts
Which one is a true fish A Jellyfish B Starfish C Dogfish class 11 biology CBSE

The flightless birds Rhea Kiwi and Emu respectively class 11 biology CBSE

Difference Between Prokaryotic Cells and Eukaryotic Cells

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE

How much is 23 kg in pounds class 11 chemistry CBSE
