RRB Technician Grade 3 practice question
If the speed of light in vacuum and water are 3.00 x 108 m/s and 2.25 x 108 m/s respectively, then the refractive index of water with respect to vacuum is:
From a RRB Technician Grade 3 Science practice set · Science
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Correct answer: (C) 1.33
Refractive index of water w.r.t. vacuum = speed in vacuum / speed in water = 3.00/2.25 = 1.33.
हिंदी में प्रश्न
यदि vacuum और water में प्रकाश की चाल क्रमशः 3.00 x 108 मी/से और 2.25 x 108 मी/से है, तो vacuum के सापेक्ष water का अपवर्तनांक क्या है?
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सही उत्तर: (C) 1.33
vacuum के सापेक्ष water का अपवर्तनांक = vacuum में चाल / water में चाल = 3.00/2.25 = 1.33।
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