Physics - Atoms and Nuclei: 3 MCQs with Answers

Atoms and Nuclei
Physics - Atoms and Nuclei

Physics- Atoms and Nuclei

Atoms and Nuclei - practice MCQ questions with detailed explanations.

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Q1. निम्नलिखित में से किस युग्म के प्रति चक्रण (आइसोस्पिन) और विचित्रता मान समान है ?

Right Answer: n, p

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Q2. एक रेडियोधर्मी तत्त्व का क्षयांक 'λ' 0.00231 प्रतिदिन है। इसका अर्द्ध-आयुकाल (दिनों में) और औसत आयुकाल (दिनों में) क्रमशः है :

Right Answer: 300, 432.9

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Q3. पॉजिट्रोनियम 'परमाणु' एक निकाय है जिसमें एक पॉजिट्रॉन और एक इलेक्ट्रॉन होते हैं जो एक-दूसरे की परिक्रमा करते हैं। पॉजिट्रोनियम में वर्णक्रमीय रेखाओं की तरंगदैर्ध्य हाइड्रोजन परमाणु में सम्बन्धित रेखाओं की तरंगदैर्ध्य से 'n' गुना है। 'n' का मान है :

Right Answer: 2

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Published: 26 August 2026 | Last Updated: 26 August 2026 |


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