Waves. Selectivity. Physics. Snell's Law. Wavelength, frequency, and refractive index.
University Entrance Exam. Physics. Waves. 2023. June. Exercise c2, section b.
A light ray with a frequency of 8.22 × 10¹⁴ Hz propagates through a liquid with a wavelength of 1.46 × 10⁻⁷ m.
i) Calculate its wavelength in air.
ii) Calculate the speed of the ray in the liquid and the refractive index of the liquid.
iii) If the ray propagates through the liquid and strikes the air-lime boundary at an angle of 10° to the normal, draw a diagram of the ray's path and calculate the angles of refraction and reflection.
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