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Q.717 :  फोटोन की खोज किसने की?

(a) जोर्ज क्रम
(b) अल्बर्ट आइन्स्टीन
(c) हेनरी कैवेंडिश
(d) हम्फ्री डेवी
View Answer
Answer :अल्बर्ट आइन्स्टीन

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