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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Given:
Sample 1:
Chloroform is
12 g Carbon
1.01 g Hydrogen
106.4 g Cl
Sample 2:
30.0 g of Carbon
Solution:
mass of chloroform from sample 1:
12 + 1.01 +106.4 =119.41 g
Now, for the total mass of chloroform in sample 2:
mass of chloroform
mass of chloroform = 119.41 = 298.53 g
Speed of the car given initially
v = 18 m/s
deceleration of the car after applying brakes will be
a = 3.35 m/s^2
Reaction time of the driver = 0.200 s
Now when he see the red light distance covered by the till he start pressing the brakes
Now after applying brakes the distance covered by the car before it stops is given by kinematics equation
here
vi = 18 m/s
vf = 0
a = - 3.35
so now we will have
So total distance after which car will stop is
So car will not stop before the intersection as it is at distance 20 m