State whether the following statements are True or False.
i. In dispersion of white light by a glass prism, yellow colour is deviated the least.
ii. In vacuum, the speed of light does not depend upon the frequency of light.
iii. In glass, the speed of violet ray is less than that of red ray.
iv. In a material medium, the speed of light depends on the frequency of light.
v. The velocity of light is different in different media.
vi. Wavelength of orange light is greater than that of blue light.
