For which of the following colour, the magnifying power of a microscope will be maximum
White colour
Red colour
Violet colour
Yellow colour
In the white light of sun, maximum scattering by the air molecules present in the earth's atmosphere is for :
(a) red colour (b) yellow colour
(c) green colour (d) blue colour.
Which of the following statements is/are true in dispersion?
I: Refractive index for violet colour is maximum
II: Deviation produced for red colour is minimum
III: The wavelength for green colour is greater than that for blue colour