Unit 10 · Effects of injuries to the cornea in the eyes

Dispersion of Light Presentation

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Science and Technology, Grade 10 · Unit 10: Light

Dispersion of Light

Prism · Newton's disc · Rainbow

What we will learn

🔺

How a prism splits white light

📏

VIBGYOR and their wavelengths

⚡

Why dispersion happens

🌀

How colours join back into white

🌈

How a rainbow forms

One colour or many?

🔥Single-colour sources
Gas flame: blue
Sodium lamp: yellow
VS
☀️Sunlight
Looks white
Really a mix of seven colours

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Presenter notes: Today we find the seven colours hidden inside ordinary white sunlight.