11. For parallel rays of white light incident on a spherical mirror, the light's color components have focal lengths that:
I was just wondering how this would direct me towards thinking about reflection? I know reflection is independent of frequency and blah but didn't know how the question would have made me think of reflection. Is it where it says "light incident"?
Choice A is the best answer. The law of reflection states that the angle of incidence is equal to the angle of reflection. This law is independent of the frequency (and wavelength) of the incident light and independent of the refractive index of the material of which the mirror is made. The best answer is choice A.
12. If a lens is immersed in water, then the medium surrounding the lens has a higher index of refraction, which results in less bending of the light rays.
Isn't it supposed to be the opposite? Doesn't light bend more when it goes from lower to higher n value?
I was just wondering how this would direct me towards thinking about reflection? I know reflection is independent of frequency and blah but didn't know how the question would have made me think of reflection. Is it where it says "light incident"?
Choice A is the best answer. The law of reflection states that the angle of incidence is equal to the angle of reflection. This law is independent of the frequency (and wavelength) of the incident light and independent of the refractive index of the material of which the mirror is made. The best answer is choice A.
12. If a lens is immersed in water, then the medium surrounding the lens has a higher index of refraction, which results in less bending of the light rays.
Isn't it supposed to be the opposite? Doesn't light bend more when it goes from lower to higher n value?