Question

i) abc + 2ab + bc- ca​

Answer 1

Step-by-step explanation:

Here's the Explanation

The bending of light as it passes from one medium to another is called refraction. ... The amount of refraction increases as the wavelength of light decreases. Shorter wavelengths of light (violet and blue) are slowed more and consequently experience more bending than do the longer wavelengths (orange and red).

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Answer 2

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