Select the incorrect statements about rainbow:
(i)Rainbow is caused by scattering of sunlight by tiny water droplets, present in the atmosphere.
(ii) A rainbow is always formed in a direction opposite to that of the Sun.
(iii) The water droplets refract and scatter the incident sunlight, then reflect it internally, and finally refract it again when it comes out of the raindrop.
(iv) Different colours reach the observer’s eye due to the scattering of light and internal reflection.