Physics · Nuclear Physics
1945 में हिरोशिमा पर गिराए गए परमाणु बम, जिसका उपनाम 'लिटिल बॉय' था, में किस विखंडनीय सामग्री (fissile material) का उपयोग किया गया था?
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यूरेनियम-235
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