Light waves of wavelength,

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

Light waves of wavelength, λ\lambda , pass from the air into a medium of refractive index 2.0. Which of the following correctly gives the speed and the wavelength of the waves in the medium? (1) Speed: C, Wavelength: λ\lambda (2) Speed: C, Wavelength: 12λ\frac{1}{2}\lambda (3) Speed: 12C\frac{1}{2}C, Wavelength: λ\lambda (4) Speed: 12C\frac{1}{2}C, Wavelength: 12λ\frac{1}{2}\lambda

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