If all the energy from a 93 W light bulb is emitted, on average, at 530.0 nm, how many 530.0 nm photons must be emitted each second to account for all 93 W? Planck's constant is 6.6 x 1034 J*s and the speed of light is 3.0 x 10° m/s.
Q: The threshold frequency of tungsten is 1.30·10¹⁵ Hz. a) Justify that, if its surface is illuminated…
A: Threshold frequency is the frequency below which photoelectric emission is not possible. So, for…
Q: 7. An electron, traveling at a speed of 6.00 x 106 m/s, strikes the target of an X-ray tube. Upon…
A: We apply conservation of momentum before and after electron strikes the target mev1=mev2+px-ray now…
Q: Photons of a certain infrared light have an energy of 1.68 x 10-19 J (a) What is the frequency of…
A: Given data The energy of the infrared light is given as E = 1.68 x 10-19 J. Planck's constant h =…
Q: A dental X-ray typically affects 194 g of tissue and delivers about 3.6 µJ of energy using X-rays…
A:
Q: A particle of matter is moving with a kinetic energy of 7.17 eV. Its de Broglie wavelength is 5.23 x…
A: Kinetic energy, K = 7.17 eV = 7.17×1.6×10-19 JWavelength, λ = 5.23 x 10^-12 mMass, m = ?
Q: How fast does a proton have to be moving in order to have the same de Broglie wavelength as an…
A: The formula connecting the debroglie wavelength and the speed is given by equation (1) given that…
Q: The threshold frequency of silver is 11.2×1015 Hz. What is the work function of silver? Planck’s…
A: Threshold frequency = f = 11.2×1015 Hz Planck's constant = h=6.63×10-34 Hz Work function will be…
Q: A flashlight emits 1.0W of light energy. Assuming a frequency of 5.2 x 10^14 Hz for the light,…
A:
Q: A/What is the wavelength of an electron with a kinetic energy of 49.8 eV? (Possibly useful…
A:
Q: A ball has a mass of 0.22 kg just before it strikes the Earth after being dropped from a building…
A: Mass = 0.22kg Distance covered (s) = 42.9 m
Q: Find Relative error for the find planck constant: h = (1.60217662 x 10^-19)(4.1628 10^-6 ±1.25718…
A:
Q: Suppose a photon has a wavelength of 2.9 μm. Calculate the momentum of the photon in kg m/s. what…
A:
Q: What is the wavelength (in meters) of a 0.5 kg particle moving with a velocity of 6.63x10-34 m/s?…
A: Given data: Mass (m) = 0.5 kg Velocity (v) = 6.63×10-34 m/s h = 6.63×10-34 J.s Required: Wavelength…
Q: The three lowest energy levels of the electron in the Hydrogen atom have energies energies E₁= -21.8…
A:
Q: What is the frequency in Hertz of an X-ray with wavelength (9.00x10^-2) nm? (Give your answer to 3…
A:
Q: 3.4. In converting electrical energy into light energy, a sixty-watt incandescent light bulb…
A:
Q: Table 5: Data for Activity 3. Material Critical Angle, e sin e Refractive index, n Water 87 0.999…
A: According to Snell's law, refractive index is the ratio of sine of angle of incidence to sine of…
Q: The frequency of yellow light is 5.08 * 10 ^ 14 * H_{Z} . How much energy does a photon of yellow…
A:
Q: Light of frequency 3.3 × 1015 Hz illuminates a piece of silver, and the silver emits photoelectrons…
A:
Q: Gold has a work function, Φ, of 5.47 ev. If a sample of gold is bombarded with 195 nm photons, what…
A: Work function, Φ = 5.47 eV Wavelength, λ = 195 nm Velocity, v = ?
Q: If the wavelength of a photon is 200nm, what is the energy in eV? Step by step please.
A: Given, The wavelength of the photon λ =200 nm =200×10-9 m. # Energy of the photon needs to be…
Q: A laser pointer used in the classroom emits light at 4650 Å, at a power of 4.00 mW. (One watt is the…
A:
Q: Gold has a work function, Φ, of 5.47 ev. If a sample of gold is bombarded with 175 nm photons, what…
A: work function of gold (φ) = 5.47 eV Wavelength of incident photons (λ) = 175 nm
Q: Light of frequency 1.6 × 1015 Hz illuminates a piece of iron, and the iron emits photoelectrons with…
A: Given that, frequency of light exposed, f= 1. 6× 10¹⁵ Hz Maximum kinetic energy, K.E= 2.7 ev KE=…
Q: Electrons Vacuum tube Typical values for a dental x ray are a kVp of 70 (meaning a peak voltage of…
A: Given: The accelerating potential of the X-rays is V = 70 kV
Q: Calculate the velocity (in m/s) of an electron that has a wavelength of (2.6000x10^-12) m.
A:
Q: particle in Another theory of dark matter (there are many theories!) predicts that there is a the…
A:
Q: A particle of matter is moving with a kinetic energy of 7.23 eV. Its de Broglie wavelength is 2.87 x…
A: The de Broglie wavelength of a particle of mass m and moving with kinetic energy E is given by,…
Q: into a flat, large courtyard beyond. Where could you stand in the courtyard to avoid being struck by…
A: To avoid being struck by the beam of bats, you could stand anywhere in the courtyard that is not…
Q: When you talk about FM radio stations and talk about the frequency it emits at, you are talking…
A: Frequency of FM radio station = 93.8 MHz Plank's Constant (h) = 6.63 × 10 -34 J s
Q: Imagine an alternate universe where the value of the Planck constant is ×6.62607·10−36Js . In that…
A:
Q: Photons of a certain ultraviolet light have an energy of 6.70 ✕ 10−19 J. (a) What is the frequency…
A: given that energy =6.70 * 10^-19 J (a) E = h * f is the formula for frequency f =E / h…
Q: An electron is ejected from a metal with a velocity of 6.70 x 10^5m/s. If the metal has a threshold…
A: Given: The speed of the ejected electron is 6.7x105 m/s. The threshold frequency of the metal is…
Q: Which objects would act like everyday objects, and be adequately described by classical mechanics?
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- What is the de Broglie wavelength of a bullet of mass 0.075 kg traveling at 350 m/s? Planck's Constant is 6.63 × 10−34 J ⋅ s. a 4.1 × 10−35 m b 2.5 × 10−35 m c 2.2 × 10−34 m d 1.7 × 10−34 mThe kinetic energy of an electron accelerated in an x-ray tube is 94.5 keV. Assuming it is nonrelativistic, what is its wavelength? Take the mass of an electron to be 9.11 × 10 31 kg. pm 0.00388An FM radio station of frequency 98.1 MHz puts out a signal of 50,000 W. How many photons/s are emitted?
- For light with a wavelength of 350 nm and with an intensity of /= 10-8 W/m², what is the number of photons/(m²s) in the light beam?How many photons with a wavelength of 450 nm is required to have a mass of 1.25 micrograms?In an experiment to study the photo-electric effect, light of wavelength 400 nm shining on a metallic surface causes electrons to be emitted. The maximum kinetic energy of the electrons is 1.05 eV (electron volts). Another light source of wavelength 200 nm is then tried, and the emitted electrons have a maximum kinetic energy of 4.20 eV. Using this information: a) determine the value of Planck's constant. b) determine the work function of the metal.
- An electron within the hydrogen atom is excited from n1 to n4. The electron then "falls" back to ni in two steps (n4 -> n2, n2 -> n1). Which of the following statements is true about the light emitted during this process? One photons will be emitted. Two photons will be emitted. O Three photons will be emitted. Four photons will be emitted.A particle of matter is moving with a kinetic energy of 7.53 eV. Its de Broglie wavelength is 2.85 x 10^-12 m. What is the mass of the particle?Suppose photons are produced in a cathode ray tube (CRT) from electrons which are accelerated across a potential of 22 kV. Energy in electron volts of the photons is 22000. what is the maximum frequency, in hertz, of these photons?
- Suppose a linear accelerator (linac) creates a X-ray beam where every individual photon has an energy of 19 MeV. If 3x1010 photons are produced over 90x10-15 s, as measured through an area of 3.1 m², determine the intensity of the X-ray beam. I = B W/m²= 1. Photoelectric effect. In a photoelectric experiment in which monochromatic light of wave- length \ falls on a potassium surface, it is found that the stopping potential Vstop is 1.9 V for > 300 nm and 0.88 V for \ = 400 nm. Imagine we know neither Planck's constant, nor the workfunction for potassium, nor the threshold frequency fo. But assume we do know the elementary charge e 1.60 × 10-19 C and want to test the theoretical prediction of Eintsein's theory. = (a) From the given data, calculate a value for Planck's constant, h. (b) From the same data, find the workfunction Eo and the threshold frequency fo for potas- sium. (c) Then compare your results for h and Eo to their known values (see Knight, Table 38.1 for the work function). (d) Plot eVstop as a linear function of frequency f. Include the information you have found in parts (a) and (b) as well as the experimental data.