INTRODUCTION TO FOOD TECHNOLOGY
FOOD SCIENCE VS FOOD TECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sometimes foods (lollies, burgers etc)
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Bottles of oil
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Fruit
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Tap with a glass of water
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Detailed explanation-1: -This is because of refraction of light. As light passes from water to air, it bends away from the normal. The refracted rays appear to come from a point above the actual position of the coin, hence the coin appears raised.
Detailed explanation-2: -As the light enters the water, it is refracted. Since the light is passing from air (less dense) into water (more dense), it is bent towards the normal. The beam of light would appear to bend at the surface of the water.
Detailed explanation-3: -The arrow looks like it has changed direction because of something called refraction. Refraction happens when light passes through one transparent (clear) thing into another, in this case, from air through the glass and water. This is sometimes called the bending of light.