Which is the relationship between photon energy and the color of light?
1 answer:
The energy of a photon is given by
where
h is the Planck constant
f is the frequency of the light.
From this formula, we see that the higher the frequency, the greater the energy, and viceversa.
Now let's have a look at the frequencies of the different colors of visible light. Violet is the color with higher frequency, while red is the color with lower frequency. This means that violet photons have the greatest energy, while red photons have the least amount of energy. So, correct answer is
<span>C. Red photons have the least amount of energy.</span>
where
h is the Planck constant
f is the frequency of the light.
From this formula, we see that the higher the frequency, the greater the energy, and viceversa.
Now let's have a look at the frequencies of the different colors of visible light. Violet is the color with higher frequency, while red is the color with lower frequency. This means that violet photons have the greatest energy, while red photons have the least amount of energy. So, correct answer is
<span>C. Red photons have the least amount of energy.</span>
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Answer:
The tension in the rope is 229.37 N.
Explanation:
Given:
Mass of the block is,
Coefficient of static friction is,
Angle of inclination is, °
Draw a free body diagram of the block.
From the free body diagram, consider the forces in the vertical direction perpendicular to inclined plane.
Forces acting are and normal
. Now, there is no motion in the direction perpendicular to the inclined plane. So,
Consider the direction along the inclined plane.
The forces acting along the plane are and frictional force,
, down the plane and tension,
, up the plane.
Now, as the block is at rest, so net force along the plane is also zero.
Therefore, the tension in the rope is 229.37 N.
