What is the energy of a photon of blue light (λ = 450 nm) and of a photon of red light (λ = 700 nm) in units of eV = 1.6*10 – 19 J? Solution: E = hc/λ .
What is the energy of a blue photon of wavelength 400 nm?
Solution: From the previous problem, the energy of a single 400 nm photon is 3.1 eV . One must therefore reduce the effective work function to 3.1 eV to allow the light to liberate an electron.
What is the energy of a photon of blue light of wavelength 450 nm?
4×10−19J .
What is the energy of a photon of blue light with a wavelength of 475?
We are given the wavelength as 475 nm. Before we go any further, let’s convert this to meters. This is the energy of a single photon of 475 nm blue light. We need 2 x 10 – 17 J of energy to begin the process.
How much energy is there in a blue photon with wavelength 440 nm?
Blue: 440 nm; 6.81 × 1014 Hz; 4.51 × 10−19 J.
How much energy is in a photon with a 450 nm wave?
Energy of a blue photon: E=6.62×10-34x750x1012 = 6.62×10-22 joule .
What is the energy of one photon of blue?
Energy of a blue photon: E=6.62×10 – 34 x750x10 12 ≈ 10 – 18 joule .
What is the energy of a red photon of wavelength 600 nm?
= 3.3×10-19J .
What is the energy of a single 462 nm blue photon?
The wavelength of a particular color of blue light is 462 nm. The frequency of this color is sec-1. (1 nm = 10-9 m) 2. The energy of a particular color of blue light is 4.43×10-22 kJ/photon .
What is the wave number equivalent of 400 nm wavelength?
Thus, the wave number will be equal to. (1) 2.5 x 104 cm-1 .
How do you calculate the energy of a photon of blue light?
Explanation: To find energy, you must know the frequency of the light. Since we are given wavelength we can use this equation: c= λ v where c is the speed of light (3 x 108 m/s), λ is the wavelength, and the v is the frequency (units: 1/s).
What is the energy of blue light with a wavelength of 500 nm?
The energy of a 500 nm photon is 4 x 10^-19 J .
Is Red light slower than blue light?
Blue light travels slightly slower in glass than red light , so it bends a sharper angle when it enters the glass from air. In physics, we say the glass has a higher refractive index for blue light than red light.
What is the energy of blue light with a wavelength of 495 nm?
Transcribed image text: am 3 1. What is the energy of blue light with a wavelength of 495 nm? E = hc/a c= 3.00 x 108 m/s 1×109 nm = 1m h = 6.626 x 10 -34 Jos 2 .
What is H in E HF?
The energy of each photon is E = hf, where h is Planck’s constant and f is the frequency of the EM radiation.
