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Ilia_Sergeevich [38]
3 years ago
7

Humans can see several thousand shades of color but have cone photoreceptors that are sensitive to only three (perhaps four) wav

elengths of light. What is the best explanation for why we see so many colors?
Select one:
a.Color perception is dependent on the millions of rods as well as cone photoreceptors.
b.Color perception is achieved by activation of various combinations between the three cone types.
c.Shades of color are purely psychological and learned by association with age, infants only seeing in black and white. Incorrect
d. Colors are added and enhanced in the primary visual cortex of the brain.
Physics
1 answer:
kipiarov [429]3 years ago
4 0

Answer:

B. Color perception is achieved by activation of various combinations between the tree cone types.

Explanation:

Human eye have only three photo receptor ( three wavelength) but they can see several thousands of shades of color because color perception is gained by combination of these three wave length cone types ( RED, BLUE AND GREEN) into various combinations. Our retina have two types of cell:- cone cells and cylindrical cells. Cone cells are responsible for the identification of color.

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A proton moves with a velocity of v with arrow = (3î − 5ĵ + k) m/s in a region in which the magnetic field is B with arrow = (î
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Answer:

The magnitude of the magnetic force this particle experiences is 2.6\times10^{-9}\ N.

Explanation:

Given that,

Velocity v= (3i-5j+k) m/s

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We need to calculate the value \vec{v}\times\vec{B}

(\vec{v}\times\vec{B})=3i+4j+11k

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Using formula of magnetic force

\vec{F}=q(\vec{v}\times\vec{B})

Put the value into the formula

\vec{F}=1.6\times10^{-19}\times(3i+4j+11k)

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Explanation:

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Which of the following statements CANNOT be supported by Kepler's laws of planetary motion?
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A child pulls on a wagon with a force of 75 N. If the wagon moves a total of 42 m in 3.1 min, what is the average power delivere
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16.96 W

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Power: This can be defined as the rate at which work is done by an object. The S.I unit of power is Watt(W).

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P = (F×d)/t....................... Equation 1

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