Revision: Refraction Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 03 Refraction - Revision Quiz Test your understanding of Refraction here: 1 / 5 1) What is critical angle for glass (refractive index 1.50) at a glass-air boundary? 45º 90º 30º 42º 2 / 5 2) Which of the following does not involve total internal reflection? Increasing brilliance in diamonds. Images viewed through prism periscopes. Raised virtual images under glass blocks. Data transmission in optical fibres. 3 / 5 3) Which of the following is not an effect of refraction? A straight pencil appears to be bent when partially submerged in water. A rainbow is observed when a ray of light passes through a glass prism. A fish appears bigger than its actual size to an observer above water. A ray of light changes direction as it travels through an optical fibre. light changing direction in an optical fibre is due to TIR. 4 / 5 4) What is the refractive index of a medium? the ratio of the speed of light in the medium to the speed of light in air. the ratio of the speed of light in vacuum to the speed of light in the medium. the ratio of the speed of light in air to the speed of light in the medium. the ratio of the speed of light in the medium to the speed of light in vacuum. 5 / 5 5) Which statement correctly describes the direction of the bending of light passing¬†into a material of higher optical density? Light travelling into a material of higher optical density will bend away from the normal. Light travelling into a material of higher optical density will bend towards the normal. Light travelling into a material of higher optical density will bend in a clockwise direction. Light travelling into a material of higher optical density will bend in an anticlockwise direction. Your score is Restart quiz
