अधिक मर्मज्ञ निम्नलिखित क� – McqOptions

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1.	अधिक मर्मज्ञ निम्नलिखित किरणों में से कौन सी हैं?
A.	अल्फा किरणों
B.	गामा किरणें
C.	बीटा किरणों
D.	एक्स-रे
Answer» C. बीटा किरणों

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