Question

3. Answer the following questions in 10-20 words:
(2 marks)
a) Define refraction.
b) A marble tile feels cold as compared to a wooden tile on a winter morning. Why?​

Answer 1

Answer:

a) In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium.[1] Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction.

b) . A marble tile would feel cold as compared to a wooden tile on a winter morning, because the marble tile (a) is a better conductor of heat than the wooden tile. (b) is polished while wooden tile is not polished. ... This helped him to keep himself warm because (a) friction between the layers of newspaper produces heat.

Answer 2

Answer:

a) Refraction is the change in direction of a wave, caused by the change in the wave's speed. Examples of waves include sound waves and light waves. Refraction is seen most often when a wave passes from one transparent medium to another transparent medium. Different types of medium include air and water.

b) because a marble tile is a better conductor of heat....

Explanation:

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