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Physics Light Optics
Asked 1 times in UPSC Prelims · first asked 2006 · last asked 2006
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Which one of the following is printed on a commonly used fluorescent tube light?
2006Sci & Tech
Which one of the following is printed on a commonly used fluorescent tube light?
2006Sci & Tech
A220 K
B273 K
C6500 K
D9000 K
Explanation
Fluorescent tube lights are gas-discharge lamps that use electricity to excite mercury vapor. The commonly used fluorescent tube light typically has the value of 6500 K printed on it.