Light & Optics Questions with Solutions

This topic covers the nature of light, reflection and refraction, mirrors and lenses, total internal reflection, dispersion and scattering of light, the human eye and its defects, optical instruments, and the colours of objects. Exams test the phenomena behind everyday sights: the sky looks blue because of the scattering of light, rainbows form through dispersion and internal reflection, diamonds sparkle because of total internal reflection, and mirages are caused by refraction. Know which lens corrects which defect (concave lenses for myopia and convex lenses for hypermetropia). Practise the light and optics questions below, written in the style of the general awareness sections of exams such as SSC, banking, railways, CUET GAT, MAH CET and CLAT. Each question comes with a detailed explanation that adds related facts, so every question helps you revise more than one point.