Light is said to carry its energy in quanta or photons, according to the photon model. When we gaze at objects, why don't we perceive a sequence of flashes?
Q: Photons of a certain ultraviolet light have an energy of 6.96 x 109 J. (a) What is the frequency of…
A: a) The expression for the frequency is, f=Ehf=6.96×10-19J6.63×10-34Jsf=1.04×1015Hz
Q: Give an answer to the following question: In the photoelectric effect, how can a photon moving in…
A: Both momentum and energy are conserved in photoelectric effect. Photoelectric effect occurs in bound…
Q: A 0.840-nm photon collides with a stationary electron. After the collision, the electron moves…
A: we know that,h=6.63×10-34λ=0.840×10-9 mm=9.11×10-31 kg
Q: A 0.844-nm photon collides with a stationary electron. After the collision, the electron moves…
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Q: 15. Which statement regarding the relative energies of monochromatic light [one color] with ). = 800…
A: given , wavelength of a monochromatic light , λ1 = 800 nm wavelength of a monochromatic light , λ2 =…
Q: A 0.836-nm photon collides with a stationary electron. After the collision, the electron moves…
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Q: A 0.393-nm photon collides with a stationary electron. After the collision, the electron moves…
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Q: I am thinking of installing a device on my roof that absorbs light with a frequency of 1.86*10^15…
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Q: Light consists of tiny 'corpuscles' called photons that possess momentum. This can be demonstrated…
A: The light bouncing off from white surface transfer twice as much momentum as light absorbed on a…
Q: s question as follows: After a 0.777 nm x-ray photon scatters from a free electron, the electron…
A: Given λ1=0.777 nm=0.777×10-9 mv=1.3×106 m/s
Q: Two lasers have 1.0 of power. One emits light at 635 nm and the other at 500 nm. Which light emits…
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Q: What speed must an electron have if its momentum is to be the same as that of an X-ray photon with a…
A: wavelength=0.95nm
Q: A certain Argon laser produces about 5 mV of light at a wavelength of 514 nm. How many photons per…
A: Power of the laser = 5mW= Wavelength of the light = 514 nM
Q: . (a) Find the momentum of a 3.9 cm wavelength microwave photon. p: ✓ kg m/s (b) Discuss why you…
A: Given data : Wavelength(λ)=3.9cmWavelength(λ)=1003.9m=0.039m Take, Plank's constant (h)…
Q: As the intensity of the light changes to more intensity, what happened to the number of electrons…
A: When a light consisting of high energetic photons strikes on metal surface, electrons are ejected…
Q: The green light emitted by a stoplight has a wavelength of 505 nm. What is the frequency of this…
A: Given , wavelength of stoplight = 505 nm c = 3.00 × 10⁸ m/s We know that velocity of light =…
Q: How much more energy does a 33 nm photon have than a 8670 nm photon? Does the 33 nm photon move at a…
A: The energy of 33nm photon is given by, E1=hcλ1 Here, h is the Planck's constant, c is the speed of…
Q: An krypton ion laser puts out 2.25 W of continuous power at a wavelength of 486 nm. How many photons…
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Q: How many photons per second are emitted by a monochromatic lightbulb (660 nm) that emits 45 W of…
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Q: A 0.703-nm photon collides with a stationary electron. After the collision, the electron moves…
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Q: An AM radio station broadcasts an electromagnetic wave with a frequency of 876 kHz, whereas an FM…
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- For an electron to have the same momentum as a photon with a wavelength of 5.00 ´ 10-7 m, the electron must be moving with a speed of a 1.33 ´ 10-27 m/s b 6.87 ´ 10-4 m/s c 1.46 ´ 103 m/s d 3.00 ´ 108 m/sCalculate the momentum of a 4.10 x 10^2 nm photon of violet light.An electron of mass 9.11 × 10−31 kg and a bowling ball of mass 6.00 kg each have 4.50 eV of kinetic energy. Calculate the de Broglie wavelength of the electron: Calculate the wavelength of a 4.50 eV photon:
- This question relates to the practicality of searching for intelligent life in other solar systems by detecting their radio broadcasts (or aliens find us from ours). The closest stars are 4 light years away from us. How far away must you be from a 460 kHz radio station with power 50.0 kW for there to be only one photon per second per square meter? Assume that the photons spread out spherically. The area of a sphere is 4??24πr2. b) How many lightyears away is this?Leaves contain an array of different light-absorbing molecules to harvest the full spectrum of visible light. Some of these include β-carotene (the compound that makes carrots orange), which absorbs at λ = 450 nm and 470 nm. A) How much energy do individual photons of 450 nm light have in Jules? B) How much energy do individual photons of 470 nm light have in Jules?A 25-turn circular coil has radius of r = 3 [cm] and a resistance of R = 10 [Q]. The coil is in a uniform magnetic field of 0.46 [T] that is perpendicular to the plane of the coil. a. magnetic flux? What is the value of the b. What is the value of the induced emf and the induced current in the coil? lemf| = [V] I = [A] Now, the value of the magnetic field is increasing from 0.46 [T] to 2.1 [T] in At = 1.4 [s]. C. emf? lemf| I = What is the value of the induced [V] d. current in the coil? [A] What is the value of the induced