एक खोज के अनुसार भारतीय वै� – McqOptions

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1.	एक खोज के अनुसार भारतीय वैज्ञानिकों ने अर्द्ध-धातु बिस्मथ को क्या बताया है?
A.	सुपरकंडक्टर
B.	सेमीकंडक्टर
C.	बेस
D.	एसिड
Answer» B. सेमीकंडक्टर

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