MPSC Rajyaseva 2019 GS Paper 1 — Question 4
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प्रकाशाकीय तंतू हा खालीलपैकी कोणत्या तत्त्वावर आधारित आहे ? Optical fibre is based on which of the following principles ?
(a)प्रकाशाच्या परावर्तानाचे तत्वावर / Principle of reflection of light
(b)प्रकाशाच्या अपवर्तनाचे तत्वावर / Principle of refraction of light
(c)प्रकाशाच्या पूर्ण आंतरिक परावर्तानाचे तत्वावर / Principle of total internal reflection
(d)प्रकाशाच्या अपस्करण तत्वावर / Principle of dispersion of light
Optical fibres work on the fundamental principle of Total Internal Reflection (TIR), where light rays traveling through the core undergo repeated total internal reflections.
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