Nanning You Ke Hotel

A and B As can be seen from the figure, the refractive angle of light A is greater than that of light B, so it can be seen that the refractive index of glass to light A is greater than that of light B, so a is correct.

C. From the analysis of formula v=cn, it can be seen that the speed of A light in glass is less than that of B light, so B is wrong.

C glass has a large refractive index to light A. In air, the frequency of light A is large, and the wavelength of light A is smaller than that of light B. Therefore, C is wrong.

D, the glass has a large refractive index to light A, and its frequency is large. The photon energy E=hγ is proportional to the frequency, so the photon energy of light A is greater than that of light B, so D is wrong.

So choose: a