MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Earn 100

Describe an experiment to show the dispersion of light. 

Important Questions on Light

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 13.3>Q 4

Explain, using the figure, why a swimming pool does not look as deep as it actually is.

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MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.3>Q 6
When light travels between two materials, refraction often occurs. State the property of the materials you would change to increase the effect.
EASY
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 13 - Light>Exercise 13.6>Q 4
Explain what monochromatic means.