किसी माध्यम के लिये ध्रुवण कोण \( 45^{\circ} \) है। माध्यम के लिये क्रान्तिक कोण का मान ज्ञात की...

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किसी माध्यम के लिये ध्रुवण कोण \( 45^{\circ} \) है। माध्यम के लिये क्रान्तिक कोण का मान ज्ञात कीजिये।
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