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it bends
Bending away from the normal
true
light rays bend away from normal as it passes from denser water to rarer air
The law of refraction is a general result of plane waves traveling from one medium to another. Consider light. The speed of light in water is LESS than its speed in air, and it bends toward the normal (refracts). The speed of sound, however, is GREATER in water than it is in air, thus its "index of refraction" is less than one (i.e. sound bends away from the normal when traveling from air to water).
it bends
Bending away from the normal
true
light rays bend away from normal as it passes from denser water to rarer air
when the rays of light falls from the air to water, it bends away from normal,inside water, bends towards normal,when it comes out of water again it ends away from from normal,hence its all because of refraction of light. sabin
The law of refraction is a general result of plane waves traveling from one medium to another. Consider light. The speed of light in water is LESS than its speed in air, and it bends toward the normal (refracts). The speed of sound, however, is GREATER in water than it is in air, thus its "index of refraction" is less than one (i.e. sound bends away from the normal when traveling from air to water).
Auxin moves away from the light to the shady side
it deviates its path and meet where water and air surfaces meet.
Tropism is the movement of a plant away from or toward a stimulus. The most easily found example of tropism is a plant's response to light. Plants tend to grow toward the light. This tendency is called 'phototropism'.
Well, the leaves tend to face toward the light.
It senses light and orients the organism toward or away fron the light.
Planarians exhibit a fairly strong negative geo-tropism and would move away from light.