NCERT 8th Class (CBSE) Science: Refraction and Dispersion of Light – Quiz

NCERT 8th Class (CBSE) Science: Refraction and Dispersion of Light – Quiz

20 Multiple Choice Questions related to NCERT 8th Class (CBSE) Science: Refraction and Dispersion of Light – Quiz:

• The bending of light as it passes from one transparent medium to another is called refraction. It occurs because light travels at lower speed in an optically denser medium.
• Light bends towards the normal at the point of incidence as it passes from an optically rarer to an optically denser medium. It dends away from the normal if it passes from a denser to a rarer medium.
• It is due to refraction that a swimming pool appears less deep than it actually is and a pencil appears bent when dipped obliquely in water.
• A glass slab causes a ray of light to be laterally displaced after refraction through it, while still remaining parallel to the incident ray.