The photoelectric current in a photoelectric cell can be reduced to zero by a stopping potential of 1.8 volt. Monochromatic - O light of wavelength 2200 A is incident on the cathode. Find the maximum kinetic energy of the photoelectrons in joules. [Charge on electron = 1.6 × 10-¹9 Cl
Q: When the light of wavelength 250 nm is incident on a metal surface, the maximum speed of the…
A: Using Einstein's photoelectric equation : E = W + Kmax hv = W + 12m vmax2W =hθ - 12m vmax2W =hcλ…
Q: A metal surface has a photoelectric cutoff wavelength of 410.5 nm. What will be the stopping…
A: In terms of maximum kinetic energy, the photoelectric equation is as follows: Kmax=hc1λ1-1λ2 Here,…
Q: The photoelectric threshold wavelength of a tungsten surface is 722 nm. Calculate the maximum…
A: Given:- The photoelectric threshold wavelength of tungsten λ = 722 nm the ultraviolet radiation of…
Q: The work function for indium is 4.12 eV. (d) If light of energy 7.14 eV is incident on indium, what…
A: Photoelectric effect is the phenomenon of emission of electrons from metals under the influence of…
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: The photoelectric current in photoclectric cell can be reduced to zero by a stopping potential of…
A: Given- e=1.6×10-19 CVs=1.8 Vλ=2200 A0To find-maximum kinetic energy of photoelectrons=?
Q: A sheet of metal is illuminated by photons with a wavelength of 325 nm and the emitted electrons are…
A:
Q: Problem 2: In a photoelectric effect experiment you illuminate a metal with light of wavelength…
A:
Q: Ex. 2 : The photoelectric current in a photoelectric cell can be reduced to zerò by a stopping…
A:
Q: Light of frequency 1.4 × 1015 Hz illuminates a piece of lithium, and the lithium emits…
A: SOlution: Givent that f = 1.4x1015 Hz KE =3.7 eV
Q: The maximum kinetic energy of a photoelectron is 3 eV. What is its stopping potential?
A: Given: The maximum kinetic energy is 3 eV.
Q: Aluminium has a work function of 4.08 eV. (a) Find the cutoff wavelength and cutoff frequency for…
A:
Q: Light that has a 199-nm wavelength strikes a metal surface, and photoelectrons are produced moving…
A: Einstein's Photoelectric equation hν =ϕ0 + 12mV2hcλ =ϕ0 + 12mV2 Where…
Q: Radiation with a frequency of 7.52 × 1014 Hz illuminates a photoelectric surface in a photoelectric…
A: Frequency = 7.52 ×10¹⁴Hz Work function = 2.20 eV
Q: The binding energy of Sodium is 2.28 eV. Calculate the number of photoelectrons ejected from a 1.00…
A:
Q: during an experiment 5.3*10^4 Hz light shines on a metal plate and the photoelectric effect occurs.…
A: Momentum p= hfc where h is Planck's constant f is frequency of incident light ,and…
Q: Potassium and gold cathodes are used in a photoelectric-effect expériment. For each cathode, find:…
A:
Q: O Ex. 28: The current in the photo-electric cell can be just reduced to zero by a potential of 1.8…
A: To find-Work function of cathode (W)=?Given-V0=1.8 vote=1.6×10-19 Cλ=2200 A0λ=2.2×10-7 m
Q: The threshold wavelength for the photoelectric effect for silver is 262 nm. What is the work…
A: Photoelectric Effect: When a light of frequency equal to or greater than the threshold frequency of…
Q: In a photoelectric effect experiment, light with a wavelength of 2.12E-7 m is shone on a clean metal…
A:
Q: ht of frequency 1 × 1015 Hz illuminates a piece of cesium, and the cesium emits photoelectrons with…
A:
Q: When 250 nm light falls on a metal, the current through a photoelectric circuit (Figure 1) is…
A: Given data, Wavelength λ=250 nm=2500 A° Stopping potential V0=1.74 V
Q: Photoelectric work function of a metal is 3 eV. Find the maximum K.E. and maximum. emitted when…
A: the problem is based upon the concept of photoelectric method, at first we have to calculate the…
Q: ne: (masselectron = 9.11 X 10-31 kg) i) The maximum kinetic energy of the photoelectron. ii) The…
A: Given values:- Potential difference,(V)=3 Volt ----(1) Mass of electron,(me)=9.11 x 10-31 kg…
Q: When light with a wavelength of 1.64E-7 m falls upon a clean metal surface, the stopping potential…
A:
Q: Ultraviolet light is incident normally on the surface of a certain substance. The workfunction of…
A:
Q: The stopping potential for photoelectrons emitted from a surface illuminated by light of…
A: a) Write the equation of the photoelectric effect and apply the first equation.
Q: When ultraviolet light with a wavelength of 400.0 nm falls on a certain metal surface,the maximum…
A:
Q: In an experiment of photoelectric effect, no current flows through the circuit when the voltage…
A:
Q: In a photoelectric experiment visible/white light (λ = 400 to 700nm) falls on a metal with work…
A: Note: Out of given multiple parts, we solve first three unless specified. You can resend the…
Q: n a photoelectric experiment, a metal with aφ=1.5 eV is used as a target. When a lamp operatingat…
A:
Q: QUESTION 7 A metal having a work function of 2.8 eV is illuminated with monochromatic light whose…
A: Given data, Work function is given ϕ0=2.8 eV =2.8×1.6×10-19=4.48×10-19 J.
Q: Photoelectric work function of a metal is 3 eV. Find the maximum K.E. and maximum speed of…
A: To find-(1) maximum K.E.=?(2) Maximum speed of photoelectronsGiven-W0=3 eV=3×1.6×10-19 JW0=4.8×10-19…
Q: The threshold frequency for a certain metal is 3.3 x 1014 Hz. If the light of frequency 8.2 x 1014…
A:
Q: The binding energy of sodium is 2.28 eV. Calculate the number of photoelectrons ejected from a 1.00…
A:
Q: Ultraviolet light of wavelength 99 nm falls on a metal plate of work function 1.0 eV. Find the…
A:
Q: clean Nickel surface is exposed to light of wavelength 235 nm. What is the maximum speed of the…
A:
Q: A 2.0-mW green laser ( λ = 532 nm) shines on a cesium photocathode (Φ =1.95 eV). Assume an…
A: Given: Wavelength, λ=532 nm=532×10-9 mϕ=1.95 eVAn efficiency of producing photoelectrons,…
Q: An electron microscope uses electron. accelerated by a voltage of 30 KV: Determine the De-Broglie…
A: To find- De-Broglie wavelength (λ)=?Given-Voltage (V)=30 KV=30×103 Vmass (m)=9.1×1031 kgEnergy of…
Step by step
Solved in 2 steps