सी.जे. डेविसन तथा एल.एच.जम॔र – McqOptions

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1.	सी.जे. डेविसन तथा एल.एच.जम॔र ने किस वष॔ मे प्रायोगिक तौर पर इलेक्ट्रॉनो की तरंग प्रकृृ्ति का सत्यापन किया ?
A.	1927
B.	1929
C.	1931
D.	1937
Answer» B. 1929

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