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) 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. 2 / 5 2) Which diagram shows light leaving an object under water and entering into an eye above the water. 3 / 5 3) Which of the following does not involve the phenomena of total internal reflection of light rays? A prismatic periscope that is used in a submarine. A pair of spectacles that corrects myopia. A mirage seen on a stretch of road in hot weather. A bundle of optical fibres that is used in endoscopes and telecommunications. 4 / 5 4) A ray of light travels into a triangular prism and refracts into many colours. The colours at the two ends of the spectrum are red and violet. Which colour of light has the higher refractive index in glass, and why? Red as red light has a higher refractive index in glass, and thus bends less. Violet as violet light has a higher refractive index in glass, and thus bends more. Red as red light has a higher refractive index in glass, and thus bends more. Violet as violet light has a higher refractive index in glass, and thus bends less. 5 / 5 5) Total Internal Reflection (TIR) occurs when Light is passing from denser to less dense medium and the incident angle is smaller than the critical angle. Light is passing from less dense to denser medium and the incident angle is smaller than the critical angle. Light is passing from denser to less dense medium and the incident angle is larger than the critical angle. Light is passing from less dense to denser medium and the incident angle is larger than the critical angle. Your score is Restart quiz
