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Card 6

Front

A ray of light refracts ????? from the normal when it speeds up.

Back

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Card 7

Front

The greater the change in speed the more the ray ..........

Back

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Card 8

Front

In a vacuum all waves.........

Back

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Card 9

Front

As waves pass through matter they ......

Back

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Card 10

Front

The refractive index - n - of a material is ........

Back

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Card 11

Front

n =

Back

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Card 12

Front

n =

Back

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Card 13

Front

Refractive index - n - or ......

Back

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Card 14

Front

If waves hit a boundary between media at an angle .....

Back

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Card 15

Front

The 'normal' to a medium at an angle is always.......

Back

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