9 янв. 2020 г. · The work function of a metal is 4.2eV, its threshold wavelength will be. 40000A; 35000A; 25000A; 29600A. A. 29600A. B. 40000A.

Threshold wavelength where photoelectrons have no energy, ie Work function = hc/wavelength.Rearrange for wavelength and substitute. Wavelength = 2*10^-7 m.

Calculate the threshold wavelength of a metal, if its work function is 2.24×10−18J. · Work function, φ0=threshold energy=hv0=hcλ0 · Threshold wavelength for a ...

27 июн. 2018 г. · The general calculation of wavelength is that they are in (n)^2/(n^2 - m^2). This is means that something can rotate (generate a wave function) ... Can you calculate work function with only threshold frequency? What will be the threshold wavelength for potassium if its work ... What is the threshold wavelength (in the angstrom) of a metal ... How to calculate the threshold frequency - Quora Другие результаты с сайта www.quora.com

Threshold wavelength for a metal is λ0, light of wavelength incident on metal is λ02. Find deBroglie wavelength of electron with maximum K.E. ?

Now, we will use the formula for work function: W = h * c / λ Replace the values of h, c, and λ in the formula: W = (6.626 x 10^-34 Js) * (3 x 10^8 m/s) ...

To find the threshold wavelength, you can use the equation: λ t h r e s h o l d = h ⋅ c ϕ

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