General Knowledge Science Technology and Inventions

__________ने नैसर्गिक किरणोत्सर्गाचा शोध लावला.

1
मारी क्यूरी
2
अर्नेस्ट रदरफोर्ड
3
हेन्री बेकरेल
4
एनरिको फर्मी

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