CBSE BOARD X, asked by ad200421, 11 months ago

रूबी का निरपेक्ष अपवर्तनांक 1.7 है । रूबी में प्रकाश की चाल ज्ञात कीजिए । निर्वात में
प्रकाश की चाल 3 x 108 m/s है।
The absolute refractive index of Ruby is 1.7. Find the speed of light in
Ruby. The speed of light in vacuum is 3 x 108 m/s.

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Answered by Tani1234

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