HARD
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Draw a ray diagram to show how a converging lens focuses parallel rays of light.

Important Questions on Light

HARD
Upper Secondary: IGCSE
IMPORTANT
Draw a diagram to show how a converging lens can produce a beam of parallel rays of light?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
What is meant by the principal focus (or focal point) of a converging lens?
HARD
Upper Secondary: IGCSE
IMPORTANT
What is the difference between a real image and a virtual image?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Look at the ray diagram shown in the Figure. How does it show that the image formed by a converging lens is inverted?
Question Image
HARD
Upper Secondary: IGCSE
IMPORTANT
Look at Figure,
Question Image
How can you tell from the diagram that the image formed by the magnifying glass is a virtual image?
HARD
Upper Secondary: IGCSE
IMPORTANT
A converging lens has focal length 5 cm. An object is placed 3 cm from the centre of the lens, on the principal axis. Draw an accurate ray diagram to represent this.
EASY
Upper Secondary: IGCSE
IMPORTANT
Draw a diagram to show how a ray of light is reflected by a plane mirror. Mark the normal and the angles of incidence and reflection. 
EASY
Upper Secondary: IGCSE
IMPORTANT
Write an equation that shows how angle of reflection and angle of incidence are related by the law of reflection. Write the equation both in words and in symbols.