Q. 3 : Number of exposed proportional to electrons emitted by a surface to light is directly (CET-1999)
Q: Resolving ‘power’ of an electron microscope versus optical (photon) microscope: If a resolution of…
A: The wavelength, The mass of an electron, The mass of the photon,
Q: The smallest resolving power of a microscope is proportional to the magnitude of the wavelength…
A: Given: Planck's constant,h=6.626×10-34JsMass of the electron,m=9.1×10-31kgWavelength of…
Q: Give an example of an application that involves the absorption of X-rays. Describe what happens on a…
A: X-rays are produced by bombarding a heavy metal target with high energy electrons. Choice of heavy…
Q: The photoelectric work function for a metal is 4.2 eV. If the stopping potential is 3V. Find the…
A: To find-λ0=?(K.E.)max=?Given-ϕ0=4.2 eV=4.2×1.6×10-19 JVs=3 Vc=3×108 m/sh=6.63×10-34 Jse=1.6×10-19 C
Q: 1) The spectral emittance of a radiating cavity is maximal at a wavelength of 32 µm. The temperature…
A: Given: Maximum Wavelength,λmax=32μm=32×10-6mWein's constant,b=2.89×10-3m·KMass of…
Q: A strip of gold with a work function of 5.1eV is illuminated by a 1.57 μm green light. Calculate the…
A: The given values are, ω0=5.1 eVλ=1.57 μm=1.57×10-6 m
Q: a) Calculate the frequency (in s-1) and the energy (in J) of a photon with the wavelength of 170 nm.…
A: Wavelength of photon (λ) = 170 nm = 1.7×10-7 m
Q: Metal 1 has a larger work function than metal 2. Both are illuminated with the same short-wavelength…
A: Work function: It is defined as the least amount of thermodynamic energy required to emit an…
Q: Resolving ‘power’ of an electron microscope versus optical (photon) microscope: If a resolution of…
A:
Q: Q.1: The e/m value of electron is (CET-1999)
A: Solution:-Given thatelectron
Q: A stabilized He-Ne laser operates at a wavelength of λ=632.8 nm and has a bandwidth of Δν=1 kHz. The…
A: Given: The He-Ne laser operates at a wavelength of λ=632.8 nm The bandwidth of the laser is Δν=1 kHz…
Q: A Blackbody radiator emits blue light with a wavelength of 475 nanometres (nm). a) Describe what a…
A: a) A black-body is an idealized physical body that absorbs all incident electromagnetic radiation…
Q: 3. Using the average speed of a gas, (8RT?MW)1/2, determine the average de Broglie wavelength for an…
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Q: 4. The sun approximates an ideal blackbody radiator at a temperature of 5825K. (a) By Wien’s Law,…
A:
Q: 16). How much energy is generated when a frequency of 2.74 e 14 Hz is created in an electron loss.
A: The energy E of a photon is given by E = hf where h the Planck's constant f is the frequency
Q: Metal surfaces on spacecraft in bright sunlight develop a net electric charge. Do they develop a…
A: As sunlight falls on the metal surface of the spacecraft, photoelectric effects take place. Due to…
Q: Q1/ A CRT has an effective length of 4 Cm and distance between the plates of 3 mm. The screen has 45…
A: Given: The effective length of the deflection plates is Ld=4 cm=0.04 m. The distances between the…
Q: electric threshold for certain metal is 3500nm . Determine the maximum energy of the ejected photo…
A: Given data: Threshold wavelength =3500 nm Incident wavelength =2000nm
Q: C4. In mammography, a 10-g molybdenum (Z = 42) target is irradiated by an X-ray beam source whose…
A:
Q: Q2) Compute the ^p and Na for the following plasmas: (a) Space plasmas with kT=0.1 ev and n=101²m³.…
A:
Q: Consider a photon of wavelength λ that imparts all of its energy to a free electron in a metal…
A:
Q: An electromagnetic radiation of wavelength 242 nm is just sufficient to ionize a sodium atom.…
A: From E= hv or hc/ λ, where : λ = 242 nm or 242 x 10-9m c = 3 x 108 m/s h = 6.62 x 10-34 J s
Q: We derived in class that, for the dipole radiation, the vector potential at distance from the…
A:
Q: Consider a cavity of size V, which is kept at a temperature T. We call N(w) dw the number of photons…
A:
Q: Q2:- Find the de Broglie wavelength of (a) a 8-MeV proton; (b) a 55-GeV electron; (c) ar electron…
A:
Q: A particle of mass m in a one-dimensional harmonic oscillator is initially in a state given by 亚(0))…
A:
Q: Q3: Calculate the minimum wavelength of X-rays emitted when electrons accelerated through 70000 V,…
A: Voltage =70000V And have to find minimum frequency
Q: Compute a rough estimate of the number of photons emitted each second by a 100-W lightbulb. You…
A: The power of the bulb is 100 W. Here we use the temperature as 3000 K.
Q: Find thermoelectron work function value in electronvolts. Electron thermoemission 15 20 25 30 35 40…
A: We can find the thermoelectron work function value (eV) from this graph by finding its intercept on…
Q: potential? I 2. Compton scattering. Derive the expression shown in the lecture: h mc 2₁-2₁ = A2=-…
A: We can solve this problem using conservation of four momentum. The detailed solution is following.…
Q: Define the wavelength region capable of photoionizing a H atom in the ground level (n = 1)
A:
Q: Q-27: Two photons have wavelength 600 nm and 150 nm strike a photo emissive surface. Find the ratio…
A: (given) Wavelength of two photons is λ1=600 nm…
Q: a) Describe the interaction process when a 95 keV x-ray photon interacts with a K-shell electron of…
A: There are many x-ray interactions with electron depending on the binding energy of the electron. Few…
Q: In Bohr's hydrogen model, the electrons move in a circular orbit around the proton and its momentum…
A: Bohr was the first man to remove the shortcomings of Rutherford's model of atom. He postulated that…
Q: So Determine the distance between the electron and proton in an atom if the potential energy ?U of…
A: Given, Potential energy of electron proton in an atom, U = 15.4 eV 1 eV = 1.6×10-19 C
Q: ) Calculate how many photons are emitted in each minute in a UV laser source, which emits light at a…
A:
Q: Q5: Determine the frequency of the wave length which emitted from an atom has an electron transited…
A: Frequency is, f=cλ
Q: From Bohr's atomic model, write an equation giving the wavelength emitted when an electron passes…
A: To write an equation giving the wavelength emitted when an electron passes from a ni level to an nf…
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