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red light diffracts more then blueblue refract more than redAnswer: (1) red, (2) blue
please explain why
(1) recall the formula dsin(theta) =n*lambda
hence the larger labmbda corresponds to the larger diffraction angle
since red light has larger wavelength the diffraction angle is greater
(2) blue light propagates slower in the media, hence it bends more than the red light.
hope this explanation helps
(1) is OK, but need a different explanation for (2)
on values are dependent upon the frequency of light.v=c/n, for blue light n is larger and hence the speed of the blue light is smaller.It is this difference in n value for the varying wavelengths that causes the dispersion of light by a triangular prizm.Violet light, being slowed down to a greater extent by the absorption and reemission process, hence it refracts more than red light.
hope this helps