CBSE Class 10 Human Eye and Colourful World — practice questions
20 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 10 Human Eye and Colourful World in the app →A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of powerAt noon the sun appears white asWhich of the following phenomena of light are involved in the formation of a rainbow?Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or The bluish colour of water in deep sea is due toThe focal length of the eye lens increases when eye musclesThe part of the eye that focuses light onto the retina by changing its shape is the:The light-sensitive layer at the back of the eye, where the image forms, is the:The defect of vision in which a person cannot see DISTANT objects clearly is:Hypermetropia (far-sightedness) is corrected using:The least distance of distinct vision for a normal eye is approximately:Dispersion of white light by a prism produces a spectrum because:A rainbow is formed by:The sky appears BLUE because of:The reddish appearance of the sun at sunrise and sunset is due to:Twinkling of stars is caused by:An old man cannot read a book held close but can see distant scenes clearly. The defect and its cure are:Tyndall effect — the visible path of a beam of light through a colloid — is a result of:The ability of the eye to focus on objects at different distances is called:Light from a star changes colour during twinkling because: