What is white light made up of?

White light is made up of a spectrum of colours.

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How does the spectrum of colours in white light become visible?

The spectrum of colours in white light becomes visible when it passes through a prism or raindrops.

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What does the mnemonic "Richard Of York Gave Battle In Vain" help to remember?

The mnemonic "Richard Of York Gave Battle In Vain" helps to remember the order of colours in the visible spectrum.

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Which end of the visible spectrum has the lowest frequency and longest wavelengths?

The red end of the visible spectrum has the lowest frequency and longest wavelengths.

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Which end of the visible spectrum has the highest frequency and shortest wavelengths?

The violet end of the visible spectrum has the highest frequency and shortest wavelengths.

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What do coloured filters do to light?

Coloured filters only allow certain colours to pass through while absorbing the rest.

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What determines the colour we perceive an object to be?

The colour we perceive an object to be depends on which wavelengths of visible light it reflects and which ones it absorbs.

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How does an object appear when it reflects all colours of light?

When an object reflects all colours of light, it appears white.

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How does an object appear when it absorbs all colours of light?

When an object absorbs all colours of light, it appears black.

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Why do objects appear black when they absorb all colours of light?

Objects appear black when they absorb all colours of light because no light is reflected back to our eyes.

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