Q. हीरा का अपवर्तनांक है ?

(A) 1.77 है
(B) 1.47 है
(C) 1.44है
(D) 2.42 है

✅ Correct Answer: (D) 2.42 है

Published by Krishna Sharma ⭐ 48.25K Points at 05-Mar-2021 10:12 am in Science

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