alleryमाध्यमाचो अपवर्तन निर्देशांक अशी व्याख्या केल्या:
Aमध्यमांत उजवाडाची गती / निर्वातांत गती
Bनिर्वातांत उजवाडाची गती / मध्यमांत गती
Cउजवाडाची गती × कंप्रता
Dउजवाडाची गती × तरंगलांबाय
Answer & Solution
Correct answer: B. निर्वातांत उजवाडाची गती / मध्यमांत गती
n = निर्वातांतल्या उजवाडाची गती (c) / माध्यमांतली गती (v). दाट माध्यमांत उजवाड मंद जाता, देखून n > 1 always. उदक n = 1.33, कंवची n = 1.5, हिरा n = 2.42.
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