Science · Physics
जेम्स चैडविक ने किस उप-परमाणु कण की खोज की थी?
- 1मेसॉन
- 2न्यूट्रॉन✓
- 3इलेक्ट्रॉन
- 4प्रोटॉन
सही उत्तर देखें
न्यूट्रॉन
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