What is the energy (E, in J) of the photons emitted by an Ar+ laser with a wavelength of λ = 488 nm?
Energy
and
Therefore,
Where
E is energy
c is speed of light (3108 m/s)
h is planck’s constant
is wavelength
Given,
Therefore,
What is the energy (E, in J) of the photons emitted byan Ar+ laser with...
Choose the correct answer: What is the energy (E, in J) of the photons emitted by an Ar+ laser with a wavelength of l = 488 nm? a. 2.46 x 1018 J b. 2.46 x 10–18 J c. 9.69 x 10–23 J d. 4.07 x 10–19 J e. 1.36 x 10–36 J
How much energy is transferred to an object that absorbs 3.76 x 1019 photons emitted by a 453-nm laser? Answer in J.
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...
The power output of a laser is measured by its wattage, the number of joules of energy it radiates per second (1 W-1Js-1). A520.-mW argon laser produces a beam of blue-green light with a wavelength of 501.7 nm (5.017x10 m (a) Calculate the energy carried by each photon. (b) Calculate the number of photons emitted by the laser per second. J per photorn photons per second The power output of a laser is measured by its wattage, the number of...
A scientist uses the 488.0 nm output from an Ar+ laser to study the vibrational energy levels of pyrimidine. A large peak due to the ring breathing vibration of the molecule is observed in the Stokes Raman spectrum at 990 cm−1. What is the wavelength in nm of the photons corresponding to this peak that the scientist is detecting? Enter the wavelength of the scattered photons.
One watt (W) is equal to 1 J/s. Assume that 5.0% of the energy output of a 75 watt light bulb is visible light and that the average wavelength of the light is 550 nm, how many photons per second are emitted by the light bulb? If 5.0% of the energy of a 75 watt light bulb is visible light, then the rate of energy of all the photons emitted is J/s (3 s.f.). A 550 nm wavelength is the...
Calculate the energy emitted per mole of photons (kJ/mol), by a neon sign with a frequency of 4.89 x 10" Hz. 2. A heat lamp produces 25.5 watts of power at a wavelength of 6.50 um. How many photons are emitted per second? (1 watt - 1 J/s) An electron in a hydrogen atom relaxes to the n-2 level emitting light of wavelength 410.2 nm. What is the value of n for the level where the electron originated? Hint: Use...
A scientist uses the 454.6 nm output from an Ar+ laser to study the vibrational energy levels of pyrimidine. A large peak due to the ring breathing vibration of the molecule is observed in the Stokes Raman spectrum at 990 cm−1. What is the wavelength in nm of the photons corresponding to this peak that the scientist is detecting?
How many photons are emitted during 6.0 s of operation of a red laser pointer? The device outputs 2.0 mW at a 635 nm wavelength. Choose best answer. (a) 3.8×1010(b) 3.8×1011(c) 3.8×1015(d) 3.8×1016
A pulsed laser emits light at a wavelength of 553.6 nm. The pulse duration is 22 ps, and the energy per pulse is 0.120 J. (a) What is the length of the pulse? mm (b) How many photons are emitted in each pulse? photons