Mathematics · Refractive Index
पहले माध्यम के सापेक्ष दूसरे माध्यम का अपवर्तनांक ज्ञात कीजिए, यदि प्रकाश पहले माध्यम में 2 × 108 ms-1 के वेग से चलता है, जो दूसरे माध्यम में बदलकर 1.25 × 108 ms-1 हो जाता है।
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