Read the following statements and select the correct option: Statement I : For passengers flying at very high altitudes, the sky appears dark Statement II : Scattering of light is not prominent at such high altitudes Select the correct answer using the codes given below:

Consider the following statements : Statement I : Light travels faster in air than in water. Statement II : Refractive index of air is greater than that of water. Select the correct answer using the…

Which of the following statements with regard to the phenomenon of the primary rainbow formation by water droplets is/are correct ? 1. It involves refraction and one internal reflection of sunlight.…

Which of the following statements for persons suffering from presbyopia is/are correct ? 1. They cannot distinguish colours. 2. It usually develops with ageing. 3. They wear either bi-focal lenses co…

Which one of the following statements is not correct for light rays ?

When a light beam falls on a triangular glass prism, a band of colours is obtained. Which one of the following statements is correct in this regard ?