Toggle navigation
Home
KPSC Previous Question Papers
Article Category
kerala psc
upsc
General
Popular Pages
Multiple Choice Question in കറന്റ് അഫയേഴ്സ് മേയ് 11
Multiple Choice Question in കറന്റ് അഫയേഴ്സ് - ഏപ്രില് 07
Multiple Choice Question in current-affairs-2016-12-22
Multiple Choice Question in current-affairs-2017-01-22
Multiple Choice Question in biochemistry-structure-and-properties-of-peptides
Multiple Choice Question in കറന്റ് അഫയേഴ്സ് - ക്വിസ് | ഡിസംബര് 05 - 12
Multiple Choice Question in biochemical-engineering-fluid-flow
Multiple Choice Question in biochemistry-allosteric-effects
Multiple Choice Question in current-affairs-2017-05-07
Multiple Choice Question in കറന്റ് അഫയേഴ്സ് മേയ് 26
Question Answer Bank
Multiple Choice Question Bank
Question Answer Category
Multiple Choice Question Category
Home
->
Multiple Choice Questions
Question Set
electronics and communication engineering electronic devices and circuits
1. The emission of light is LED due to
(A): conversion of heat energy into illumination
(B): emission of electrons
(C): emission of holes
(D): generation of electromagnetic radiations
Previous Question
Show Answer
Next Question
Add Tags
Report Error
Show Marks
Ask Your Doubts Here
Type in
(Press Ctrl+g to toggle between English and the chosen language)
Post reply
Comments
Show Similar Question And Answers
QA->Absorption of light of one wave length by a substance and the re-emission of light of greater wavelength is called?....
QA->When yellow light is incident on a surface no electrons are emitted while green light can emit. If the red light is incident on the surface then?....
QA->Emission of light in the visible region after absorbing certain electromagnetic radiations is called?....
QA->Battle of Water Loo (1815) British force led by Duke of Wellington defeated French force led by ?....
QA->Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit?....
MCQ->Assertion (A): The amount of photoelectric emission depends on the intensity of incident light. Reason (R): Photo electric emission can occur only if frequency of incident light is less than threshold frequency. ....
MCQ->The emission of light is LED due to....
MCQ->Figure shows an 8-bit LED display. A light circle means that a LED is ON (binary 1) and a dark circle means a LED is OFF (binary 0). What is the decimal equivalent of the binary number displayed? ....
MCQ->When electronic emission occurs due to bombardment of high velocity electrons on a metal surface, it is called secondary emission.....
MCQ->Pick out thể one word for - a secret arrangement....
×
×
Type The Issue
×
Your Marks
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use | Powered By:Omega Web Solutions
© 2002-2017 Omega Education PVT LTD...
Privacy
|
Terms And Conditions
Question ANSWER With Solution