2 years ago

Which of the following cools the air in a household refrigerator?

1 answer:

7 0

<span>The answer is A since refrigeration occurs when the normal room temperature heat is drawn away from the inside of the unit through the evaporation of a liquid. Through the process of entropy then, the air instantly cools to the right temperature to preserve food.</span>

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Given,

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refractive index of air, n' = 1

angle of incidence, i = 35°

angle of refraction, r = ?

Using Snell's law

n' sin i = n sin r

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$tan \alpha = \dfrac{t}{d/2}$

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