When ray of light passes through a parallel-sided block of glass or Perspex. What can you say about its final direction of travel? Enable Ginger Cannot connect to Ginger Check your internet connection or reload the browser Disable in this text field Rephrase Rephrase current sentence Edit in Ginger ×

When the ray passes through a parallel-sided block of glass or Perspex, it returns to its original direction of travel, although it is shifted to one side. When we look at the world through a window, we are looking through a parallel-sided sheet of glass. We do not see a distorted image because, although the rays of light are shifted slightly as they pass through the glass, they all reach us travelling in their original direction. Refraction occurs when a ray of light travels from one material to another. But we will notice that the direction in which the ray bends depends on whether it is entering or leaving the glass.

E M B I B E

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.7

HARD

Upper Secondary: IGCSE

IMPORTANT

Earn 100

Draw a diagram to show how a ray of light passes through a parallel-sided block of glass or Perspex.

Important Questions on Light

HARD

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.7

When ray of light passes through a parallel-sided block of glass or Perspex. What can you say about its final direction of travel?

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.8

A vertical ray of light strikes the horizontal surface of some water. What is its angle of incidence?

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.8

A vertical ray of light strikes the horizontal surface of some water. What is its angle of refraction?

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.9

When a ray of light passes from air to glass, is the angle of refraction greater than or less than, the angle of incidence?

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.1

Why do we see a distorted view when we look through a window that is covered with raindrops?

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.11

Look at the table. What is the value of the refractive index of a diamond?
Question Image

HARD

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.12

The figure shows what happens when a ray of light enters blocks of two different materials, A and B
Question Image

(a) In which material does the light travel more slowly, A and B? Explain how you can tell from the diagrams.
(b) Which material, A or B, has the greater refractive index?

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.13

Light travels more quickly through water than through glass. Which has the greater refractive index, water or glass?