How do you calculate threshold frequency?
The formula of threshold frequency is W= hv0. Here v0 is the photoelectric threshold frequency of the electromagnetic light rays, W is the work function of the metal body.
What is the threshold frequency or wavelength for sodium?
The threshold wavelength for sodium is 5× 10-2m.
What is the threshold frequency of light for sodium?
Sodium metal has a threshold frequency of 4.40×1014 Hz.
How do you find the threshold frequency of a threshold wavelength?
The frequency of the light for which its energy is equal to the work function is called threshold frequency ν0. Therefore, ϕ=hν0. Let us use the relation between the frequency and the wavelength of light, i.e. ν=cλ. When the light wave has threshold frequency, its wavelength is called threshold wavelength (λ0).
How to calculate threshold frequency VO for sodium?
Work function for sodium metal is 1.82 eV, calculate the threshold frequency vo for sodium. (A) 2.75 x 103 HZ (B) 2.92×10-19 Hz (C) 4.40×104 Hz (D) 4.40×1052 Hz Work function for sodium metal is 1.82 eV, calculate the threshold frequency vo for sodium.
What is the threshold frequency of a metal?
No photoelectrons will be emitted from the metal surface. Ans: The threshold frequency is 1.2 x 10 15 Hz and no photoelectron will be emitted. The photoelectric work function of a metal is 2.4 eV. Calculate the incident frequency, the threshold frequency for the metal.
How to calculate the threshold frequency ( f 0 )?
Given kinetic energy in J (joules) and incident frequency ( f ), threshold frequency ( f 0) can be found by a mere substitution of values in e q ( 1), as f = W/h where h is planck’s constant. Therefore if we know the work fucntion we can work out the threshold frequency but don’t forget to convert 3eV into J. 1eV = 1.6 x 10^ {-19} J.
How to calculate the threshold frequency of platinum?
Given: Work function of platinum = Φ = 6.3 eV =6.3 x 1.6 x 10 -19 J, Threshold wavelength of silver = 1972 Å = 1972 x 10 -10 m, speed of light = c = 3 x 10 8 m/s, To Find: Planck’s constant = h =?
