Ex 41 Ex 41: Photoelectric work function of a photosensitive the threshold wavelength. material is 4.8×10-19. Calculate (March '89)

Q: Ex. 32: The photoelectric work function of silver is 3.3 eV. Calculate the threshold frequency for…

A: To find-THreshold frequency (vv0)=?Given-W0=3.3 eV=3.3×1.6×10-19 Jh=6.63×10-34 Js

Q: In the photoelectric effect, the greater the work functiona. the greater the speed of an electronb.…

A: The objective of the question is to understand the relationship between the work function and…

Q: When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the maximum…

A: The photoelectric equation is given as                     where is the incident energy…

Q: Ex. 32: The photoelectric work function of silver is 3.3 eV. Calculate the threshold frequency for…

A: To find-Threshold frequency (v0)=?Given-W0=3.3 eV=3.3×1.6×10-19 Jh=6.63×10-34 Js

Q: Experiment on photoelectric effect produced data whose variation is shown in the below graph. Find…

A: So here the third question which is asked to find the energy level of doubly ionized Helium atom is…

Q: QUESTION 46 An electron absorbsa photon as it moves from an energy level at E--16x 1019 1 to an…

A: The energy of the photon can be determined as, Here, Ef and Ei   represent the final energy and the…

Q: A metal which has a threshold wavelength 2.3x1°m is irradiated by a light of wavelength 1.8x1°m.…

A: Given: The threshold wavelength is 2.3x10-9 m. The wavelength of the light is 1.8x10-9 m.

Q: The threshold wavelength for the photoelectric effect for silver is 262 nm. 1) Determine the work…

A: Given, The threshold wavelength,  λ0=262nmλ0=262×10-9m 1. The energy of the photon is the work…

Q: Albert Einstein received the Nobel Prize in Physics in 1921 "for his services to theoretical…

A: The correct answer is option (1) i.e. It essentially describes how photons of light provide energy…

Q: A certain microwave oven produce microwave with wavelength at 2.50 mm, if 20.0 moles of photons are…

A:

Q: Photoelectrons with a maximum kinetic energy of 7.95 eV are emitted from a metal when it is…

A: Solution:-Step Q1: Step Q2: Step Q3:

Q: . i. Calculate the maximum wavelength λmax of electromagnetic radiation that could eject electrons…

A:

Q: Q3:- (a) Find the change in wavelength of 85 pm x-rays that are scattered 115° by a target. (b) Find…

A: Given data: Wavelength of the x – rays, λ=85 pm = 85×10-12 m Angle scattered, θ=115°

Q: Why does light of a certain frequency need to be used to produce a current in the photoelectric…

A: When ultraviolet light or X-rays are made to fall on any metal surface (such as zinc plate), free…

Q: Alight source of wavelength illuminates a metal and ejects photoelectrons-2s with a maximum kinetic…

A: we know that  h f  = h fo + K E max for first source  K E max = 2 e V        h fo = 1 e V        For…

Q: 5. For the photoelectric effect in sodium, the figure shows the plot of cut-off voltage versus…

A: In photoelectric effect, the maximum kinetic energy attained by the photoelectrons is written as,…

Q: A lamp that emits photons of wavelength 200nm is used un a photoelectric effect demonstration.…

A: Wavelength of photon, C= 200 nm  Area of plate, A = 0.01 m Current produced, I = 5 mA Number of…

Q: PET is an abbreviation for O photon emission tunneling. O photon-electron tunneling. O pericranial…

A: Positron emission tomography is the abbreviation of PET in pysics It is a nuclear imaging technique…

Q: What would be the velocity in m/s of a horse if it weighs 4.704e+8 g and its de Broglie wavelength…

A: Given data Mass, m=4.7×108 g=4.7×105 kg Wavelength,λ=1.062×10-40 m

Q: As the intensity of light increases in the photoelectric effect, the ejected electrona. has a…

A: The question is asking about the effect of increasing the intensity of light on the photoelectric…

Q: Light of wavelength 1,6x10 10 m from a mercury arc falls upon a metallic photocathode, and the least…

A:

Q: 4) The minimum frequency for the photoelectric effect to occur in a given metal is 5 x 10¹4 Hz. a)…

A: Given: Minimum frequency (fο) = 5 × 1014HzTo find: a) Work function of the metal (W)             b)…

Q: Ex 41: Photoelectric work function of a photosensitive material is 4.8×10-19. Calculate the…

A: To find-Threshold wavelength (λ0)=?Given-W=4.8×10-19 Jh=6.63×10-34 Jsc=3×108 m/s

Q: 9. Visible light having a wavelength of 5.0 x10 m appears green Compute the frequency and energy a…

A:

Q: 8. The graph shows the maximum KE of photoelectrons escaping a metal surface when irradiated with…

A:

Q: Q1// In Photoelectric Effect the amount of current flow is depended on applied Potential difference…

A: When radiation with a frequency mare then threshold frequency falls on a photo sensitive material it…