Verbal Reasoning - Verification of Truth - Discussion
Discussion Forum : Verification of Truth - Verfication of Truth (Q.No. 11)
11.
A bulb always has
Discussion:
27 comments Page 2 of 3.
Tashi said:
6 years ago
Does the florescent tube light have filament?
Cross said:
8 years ago
Common LEDs and LED light bulbs do not have a wire filament or any type of filament, because they produce light through a very different process than incandescent lights do.
Vikram said:
9 years ago
We have LED bulbs which neither have filament nor have glass. So all the options are wrong.
Trench said:
9 years ago
Bhai log we need current first because if the current is not there then it won't get light.
Naveen said:
2 decades ago
Filament is the essential part in bulb.
Anu said:
1 decade ago
Without Filament there is no bulb.
Arpit said:
1 decade ago
Both the ans are correct, glass and filament are essential part of the bulb as filament is heated up it will glow + the glass helps to maintain vacuum Or gas in bulb.
Amber said:
1 decade ago
But the question was A bulb always has so it also can be glass I mean both the ans can be valid.
K2k said:
1 decade ago
Because of filament the bulb gets heated up when the current pass through it. As the filament gets heated up the heat we are able to see it as a light or illumination which is seen in visible range. So filament is the correct answer.
Vibhu said:
1 decade ago
Fillament is the essential part of bulb as bulb is related to mainly illumination and filament is the essential part for that in the the bulb.
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