EASY
Upper Secondary-IGCSE
IMPORTANT
Earn 100

If a light left a swimming pool like this, how the real and apparent depth would compare.

Important Questions on Light

MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.1>Q 2
State the property of reflection that means an image be formed on a screen.
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.1>Q 3
If the angle a ray of light makes with the mirror is 22°, calculate its angle of reflection. State the relationship that allows you to say what the angle will be.
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.2>Q 1
State what happens to the speed of light when light travels from air into glass.
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.2>Q 2
State what happens to the speed of light when light travels from air into a vacuum.
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.3>Q 1
The refractive index of a certain material is 1.45. State whether light travels faster or slower in the material than in the air.
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.3>Q 2
A ray of light passes through the material with a refractive index 1.45. As it leaves that material, state whether it will bend towards or away from the normal.
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.4>Q 5

The figure shows light travelling down an optical fibre. Explain, using the diagram, why it is important that these fibres are not bent too much.

Question Image

EASY
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.6>Q 4
Explain what monochromatic means.