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.
Mirza said:
9 years ago
It's wrong to say that a bulb doesn't have glass. If it so then it's not bulb it is led.
It's not necessary to have a filament in bulb like CFL.
It's not necessary to have a filament in bulb like CFL.
(1)
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.
Vivekp said:
1 decade ago
I also think, its a filament as filament is more important part than glass. . As without glass, bulb glow but without filament with only glass bulb doesn't glow.
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.
Jason Almeida said:
1 decade ago
Not all bulbs use filaments. But I ve never seen a plastic bulb also or rather plastic bulbs are even more rare if at all there are any!. So its "FILAMENT".
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