Question
Download Solution PDFविद्युत बल्ब सामान्यत: रासायनिकदृष्ट्या निष्क्रिय अशा ____________ वायूंनी भरलेले असतात.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंकल्पना
- विद्युत बल्ब: हे एक विद्युत उपकरण आहे जे विद्युत उर्जेचे उष्णता आणि प्रकाश उर्जेमध्ये रूपांतर करते.
- हे सामान्यतः काचेचे बनलेले असते ज्यामध्ये निष्क्रिय वायू भरलेले असतात (नायट्रोजन आणि अरगॉन).
- तंतू टंगस्टनपासून बनलेले असतात ज्याचा द्रवणांक खूप जास्त असतो.
स्पष्टीकरण:
- विद्युत बल्बच्या बंद काचेच्या कक्षेत अरगॉन हा एक निष्क्रिय (अक्रिय) वायू असतो.
- काचेचा कक्ष हवेने भरला जाऊ शकत नाही कारण ऑक्सिजनच्या उपस्थितीमुळे तंतू जळतो, म्हणजे ऑक्सिजनसह अभिक्रिया होते.
- काचेच्या कक्षाला निर्वात बनवता येत नाही. निर्वात स्थितीप्रमाणे, अतिशय उच्च तापमानामुळे तंतूचे बाष्पीभवन होईल, ज्यामुळे बल्ब निरुपयोगी होईल.
- बल्बमधील निष्क्रिय वायू एक विशिष्ट दाब राखून ठेवेल, ज्यामुळे तंतू बाष्पीभवन होण्यापासून प्रतिबंधित होईल.
- अरगॉनप्रमाणे नायट्रोजन देखील वापरला जातो. त्यामुळे पर्याय 2 योग्य आहे.
Last updated on Jul 22, 2025
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