EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Draw a diagram to show how a ray of light is refracted when it strikes the internal surface of piece of glass at an angle smaller than the critical angle. Label incident, refracted and reflected rays.

Important Questions on Light

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.1
Write the word AMBULANCE as it would appear when reflected in a plane mirror.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.1
Why is it sometimes written in this way Question Image on the front of the ambulance?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.5
Draw a diagram to show what we mean by the angle of incidence and angle of refraction for a refracted ray of light.
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 13.13
Light travels more quickly through water than through glass. Which has the greater refractive index, water or glass?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>Questions>Q 13.15
A solution of sugar in water is found to have a refractive index of 1.38. Calculate the speed of light in the solution. (The speed of light in vacuum is 3×108 ms-1)
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>End-of-chapter questions>Q 6
Draw a diagram to show how a converging lens causes parallel rays of light to be focussed. 
EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 13 - Light>End-of-chapter questions>Q 8
The law of reflection says that : "When a ray of light is reflected at a surface, the angle of incidence is equal to the angle of reflection". Draw a diagram to indicate how a ray of light is reflected by a flat mirror, and mark the two angles mentioned in the law.