Question

The blue color of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5 x 1014 Hz. What is the energy associated with this frequency?

Answer 1

Answer: The energy associated with blue light is $49.65\times 10^{-20}J$

Explanation:

To calculate the energy of the light for a given frequency, we use the equation given by Planck, which is:

$E=h\nu$

where,

E = energy of the light

h = Planck's constant = $6.62\times 10^{-34}Js$

$\nu$ = frequency of the light = $7.5\times 10^{14}s^{-1}$

Putting values in above equation, we get:

$E=6.62\times 10^{-34}Js\times 7.5\times 10^{14}s^{-1}=49.65\times 10^{-20}J$

Hence, the energy associated with blue light is $49.65\times 10^{-20}J$

Answer 2

$\rm 49.65 \times 10^-^2^0\;J$ is the energy associated with the frequency.

What is the frequency?

The number of times a repeated event occurs per unit of time is known as frequency.

The frequency of the blue light is 7.5 x 1014 Hz

To calculate the energy of the light, we will use plank's equation

$\rm E = hv$

Where E = energy

$\rm Plank's \;constant = 6.62 \times 10^-^3^4 Js\\\\ Frequency \;of \;the\;light\;v = 7.5 \times 10^-^1^4 s^-^1$

Putting the values

$\rm E =6.62 \times 10^-^3^4 \times 7.5 \times 10^-^1^4 = 49.65 \times 10^-^2^0\;J$

Thus, the energy associated with this frequency is $\rm 49.65 \times 10^-^2^0\;J$

Learn more about frequency, here:

https://brainly.com/question/14926605