The Human Eye and the Colourful WorldClass 10 Physics Assertion & Reason Questions

Assertion (A): The ability of the eye lens to adjust its focal length is called accommodation.

Reason (R): The curvature of the eye lens can be modified by the ciliary muscles, changing its focal length.

Assertion (A): A person with myopia is prescribed a concave lens for correction.

Reason (R): In a myopic eye, the image of a distant object is formed in front of the retina because the eye's converging power is too high.

Assertion (A): The clear sky appears blue.

Reason (R): Fine particles in the atmosphere scatter blue light (shorter wavelengths) more strongly than red light (longer wavelengths).