i) Recall the Photoelectric effect, if an electron has been accelerated through a potential difference of 100 V then calculate its velocity in m/s.
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Q: A + B
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Q: Can an electron beam sweep across the face of a cathode- ray tube at a speed greater than the speed…
A: The maximum sweep rate can be equal to 30 cm/ns.
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A: The length of the sofa: l=2 m The width of the sofa: w=1 m The duration of the movie: t=2 hr The…
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A: Given data :Initial length of particle (Lo)=2145mThe particle is moving at speed (v) = 0.51c To…
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Q: An evacuated tube uses a potential difference of V 0.28 kV to accelerate electrons, which then hit a…
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Q: Two photons with the same frequency collide head-on producing an electron-positron…
A: We know, mass is a form of energy. When two photons collide with each other, their energy get…
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Q: Radiations are emitted by a blackbody at 1232 ℃ peaking at wavelength of 5032 Å. Find the wavelength…
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Q: The Sun radiates electromagnetic energy at the rate of 3.92 x 10^26 watts. (a) What is the change in…
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Q: 1. A proton (mass = 938 MeV/c2) has kinetic energy of 10 MeV. a) What is its velocity (you can use…
A: Given: In this question, the given details are, A proton (mass=938 MeV/c2) has kinetic energy of 10…
Q: 2. Light of frequency 7.40 × 10¹4 Hz ejects electrons from surface (A) with a maximum kinetic energy…
A: Given, The frequency of the light, f=7.40×1014 Hz The kinetic energy of electrons ejected by surface…
Q: 3) A proton is moving with 10^8 m/s speed. Find the De Broglie wavelength associated with the proton…
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Q: 2. Light of frequency 7.60 x 10¹4 Hz ejects electrons from surface (A) with a maximum kinetic energy…
A: The frequency of the light, The kinetic energy of electrons ejected by surface A,
Q: When you shine a certain source of em radiation on a sheet of gold. (Work function W1=5.1 eV) the…
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Q: Al mm radius laser beam is represented by: E = (8.6X 10°) sin (kx -wt) (v/m). Let c = 2.998 X 108…
A: Given data, Electric filed associated with the given laser beam is :- E=8.6×106sinkx-ωt Vm
Q: an electron gain energy after colliding with photon , then speed of the electron become 0.9c and…
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Q: An electron in a hydrogen atom has a speed about the proton of 2.2x10 m/s. the relativistic and…
A: Givenvelocity (v)=2.2×106 m/s
Q: The Dirac (1938) relativistic theory of classical point electrons has as its equation motion, dp =…
A: The relativistic theory of classic point electrons has the equation of motion, dpμdτ=Fμext+Fμrad…
Q: *31. Multiple-Concept Example 6 explores the approach taken in problems such as this one. Quasars…
A: Given Quasar radiates electromagnetic energy at the rate of E=1.0×1041W Using energy mass relation…
Q: A) what is the wavelength in m of a 4.69*10^6 eV photon b) find its frequency in hertz c)…
A: Energy of photon (E) = 4.69×106 eV
Q: A star is moving away from Earth with speed V. It emits radiation with wavelength λ0 measured in…
A: Given data, Speed = V The wavelength emitted by the source= λs=λ0 The wavelength received by the…
Q: Harry sees Jean fly past in her spaceship at a speed of 2.828 x 108 m/s. Jean sends Harry a pulse…
A: The problem can be solved using the concept of Time dilation. When an object travels with a…
Q: 9) instantly t= 0, x= 0 a rectangular frame at the center of the origin starts moving at speed v =…
A: The emf induced due to the time-varying magnetic field B is given as, Emf is equal to the rate of…
Q: B) Using the properties of F.T., Calculate the F.T. of the signal x(t) = 5- sin(3πt) sin (5πt) t²
A: F(ω) = 12π∫-∞∞5sin(3πt)sin(5πt)t2eiωtdtF(ω) = -52i12iπ2(ω-8π)sin(ω-8π) -π2(ω+8π)sin(ω+8π)…
Q: 5. The loop in Figure has a radius of 12 cm and is in a magnetic field of strength 0.15 T. The loop…
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Q: An electron in a hydrogen atom has a speed about the proton of 2.2x106 m/s. the relativistic and…
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Q: A pair of computer-interfaced photogates can be used to accurately measure the time interval for an…
A: A pair of computer-interfaced photogates can be used to accurately measure the time interval for an…
Q: KE= E photon - º
A: given workfunction of Na is ϕ=2.3eV=2.3×1.6×10-19J=3.68×10-19J frequency ϑ=7.62×1015sec-1
Q: The lifetime of a free neutron is 886 s. If a neutron moves with a speed of 1.00 ✕ 108 m/s relative…
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Q: 6. Let's derive the doppler effect for EM waves. Suppose that in frame S there is an electromagnetic…
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Q: 43. An electron and an antielectron (each has mass 9.11 x 10-³¹ kg), each traveling at 0.6c relative…
A: Given,
Q: 7. Determine that the particle must travel at the speed of light in vacuum (C) so that the particle…
A: Have a look dear
Q: 122. A light of frequency 1.6 x 10º Hz when falls I| on a metal plate emits electrons that have…
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Q: The special theory of relativity predicts that there is an upper limit to the speed of a particle.…
A: Special theory of relativity explains how the space and time are linked for objects that are moving…
Q: Using the conservation of energy and momentum, show that a free electron in rest cannot undergo…
A: Let us consider a photon with energy hν and momentum hνc which is being absorbed by an electron…
Q: What is the mass of the system of photons shown in figure? E = 2m 90° - E = 3m 0 = 30° A. 24m B. V6m…
A: Since the total energy of a photon E=pc where p =the momentum and c is the speed of light in vacuum.…
Q: = Using the Bohr model, calculate the speed of the electron when it is in the first excited state, n…
A: Use atomic structure speed Formula
Q: Measure the slope of the line of best fit. Since D₁ = ky Vay, the slope will equal dy Va so multiply…
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Q: A. If a proton moves at 0.750c, calculate the totalenergy of the proton in the laboratory frame…
A: The objective of the question is to calculate the total energy of a proton moving at a speed of…
Q: Use the worked example above to help you solve this problem. (a) Compare the de Broglie wavelength…
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Q: In the context of photoelectric effect, work function () is defined as the O minimum energy required…
A: In the context of photoelectric effect, work function is defined as the…
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