Solved UPSC CDS/OTA Question
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Q · Optics-Refraction of LightMedium · 45s
Consider the following statements: 1. The refractive index depends on the wavelength of light. 2. For glass, the refractive index for red light is less than that for violet light. Which is/are correct?
TopicOptics-Refraction of Light
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Dispersion occurs because the refractive index varies with wavelength. For most materials like glass, violet light bends more (higher refractive index) than red light.
Final Answer: Option C - Both 1 and 2