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How can you refract light?

Answer 1

Owen Atkinson

Use lens or other medium which will refract light.

Light is refracted when it passes through various materials, such as water or glass.

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Answer 2

Ivy Allen

Light can be refracted when it passes from one transparent medium to another with a different optical density, causing the light rays to change direction. This change in direction occurs due to the change in the speed of light as it travels through different mediums, according to Snell's Law.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.