h = Planck's constant =
= frequency =
E = J.
A laser emits light with a frequency of 1.59 Times 10^15 Hz. What is the energy...
a. A laser emits light that has a frequency of 4.69 x 1014 s-1. What is the energy of one photon of this radiation? b. If the laser emits a pulse containing 5.0 x 1017 photons of this radiation, what is the total energy of that pulse? c. If the laser emits 1.3 x 10-2 J of energy during a pulse, how many photons are emitted?
1) A laser emits light of frequency 4.74 x 10# sec . What is the wavelength of the light in nm(l m -10 nm)? The speed of light is c 2.998 x 10* m/s. (5 pts) 2) The blue color of the sky results from the scattering of light by air molecules. The blue light has a frequency of about 7.5 x 10" Hz. (1 Hz- 1/s) a) Calculate the wavelength, in nm, associated with this radiation. 1 Hz 1s...
Calculate the wavelength of light in vacuum that has a frequency of 5.27 times 10^15 Hz. What is its wavelength in water? Calculate the energy of one photon of such light in vacuum. Express the answer in electron volts. eV Does the energy of the photon change when it enters the water? The energy of the photon changes. The energy of the photon does not change. Explain. This answer has not been graded yet.
3. A laser emits photons having energy of 3.74 × 10-19 J. What color would be expected for the light emitted by this laser? (c=3.00 × 10⁸ m / s, h=6.63 × 10^{-34} J · s)a) violetb) bluec) greend) yellow to orangee) orange to red4. What is the frequency of a photon having an energy of 9.08 × 10^{-16} J ? (c=3.00 × 10⁸ m / s, h=\right. \left.6.63 × 10^{-34} J · s)a) 2.72 × 10^{-7} Hzb) _______ 2.43...
A green laser pointer emits light with a wavelength of 524 nm. What is the frequency of this light? What is the energy of one of these photons?
Practice Exercise. A laser emits a pulse of light containing 3.74 x 10-16 J of energy at a frequency of 5.77 x 1013 Hz. How many photons are present in the pulse? (Answer: 9780 photons)
A green laser pointer emits light with a wavelength of 528 nm. the frequency of this light is ν =5.68×1014 s^−1 What is the energy of one of these photons?
9. An excited hydrogen atom emits light with a frequency of 1.141 x 10 HZ energy level for which n=4. In what principal quantum level did the electron begin
I need to the steps A microwave emits photons with frequency of 2.45 times 10^9 Hz. How many mole of photon are required to heat 394.3g of water from 23.0 degree C to 100.0 degree C. If 10% of the water is evaporated in the process.
A large laser emits an intense pulse of light delivering an energy of 5080J in 8.40×10-3s. If the frequency of the light is 5.94×1014Hz, how many photons are emitted in this pulse?