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यदि एक समतल-उत्तल लेंस में उत्तल पृष्ठ की वक्रता त्रिज्या 10 सेमी है और लेंस की फोकस दुरी 30 सेमी है तो लेंस के पदार्थ का अपवर्तनांक होगा-

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यदि एक समतल-उत्तल लेंस में उत्तल पृष्ठ की वक्रता त्रिज्या 10 सेमी है और लेंस की फोकस दुरी 30 सेमी है तो लेंस के पदार्थ का अपवर्तनांक होगा-
A. 1.5
B. 1.66
C. 1.33
D. 3
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Correct Answer - C
`1.33`
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