All Courses
Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity Get the App Login Join for Free
Sign in Open App
Defence Exam  >  Defence Questions  >  Process of emission of electrons from hot met... Start Learning for Free
SaveJoin the Discussion on the App
Process of emission of electrons from hot metal surface is called
  • a)
    Electronic emission
  • b)
    Thermionic emission
  • c)
    Electron capture
  • d)
    Proton loss
Correct answer is option 'B'. Can you explain this answer?
FREE This question is part of
Download PDF Attempt Test
Download PDF Attempt this Test
Verified Answer
Process of emission of electrons from hot metal surface is calleda)Ele...
The process of electron emission from a metal surface by supplying thermal energy to it is known as thermionic emission.
The factors on which it depends are:
(i) the nature of the metal
(ii) the temperature of the surface of the metal.
View all questions of this test
Most Upvoted Answer
Process of emission of electrons from hot metal surface is calleda)Ele...
The process of electron emission from a metal surface by supplying thermal energy to it is known as thermionic emission.
The factors on which it depends are:
(i) the nature of the metal
(ii) the temperature of the surface of the metal.
< Previous Question Next Question >
Explore Courses for Defence exam

Similar Defence Doubts

Read the following passage and answer the questions given below.It is no surprise that the IEA found that India’s carbon emissions had grown by 4.8% during 2018, in spite of the national focus on climate change in energy policy. There is wide recognition of the fact that Indians are not historically responsible for the problem, and it is the rich nations led by the U.S. that have pumped in the stock of carbon dioxide linked to extreme climate impacts being witnessed around the globe. As the IEA points out, India’s emissions have grown, but per capita, they remain less than 40% of the global average. Equity among nations is therefore at the center of the discussion on energy emissions, and the principle of common but differentiated responsibilities is central to the UN Framework Convention on Climate Change (UNFCCC). Reassuring as this may be, the universal challenge of climate change has grown to such proportions that urgent action to sharply cut carbon emissions is crucial, and all countries, including India, must act quickly. Intensive measures in key sectors — scaling up renewables to raise their share in the energy mix, greening transport, updating building codes and raising energy efficiency — will help meet the national pledge under the Paris Agreement to cut energy intensity of GDP by 33-35% by 2030, over 2005 levels.Q.Which of the following conclusions can be drawn from the passage?

Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer?
Question Description
Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Defence. Download more important topics, notes, lectures and mock test series for Defence Exam by signing up for free.
Here you can find the meaning of Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Process of emission of electrons from hot metal surface is calleda)Electronic emissionb)Thermionic emissionc)Electron captured)Proton lossCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Defence tests.
Explore Courses for Defence exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Get App
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup