Home
Class 14
PHYSICS
The photoelectric threshold wavelength o...

The photoelectric threshold wavelength of silver is `3250 xx 10^(-10) m`. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength `2536 xx 10^(-10) m` is
`(Given h = 4.14 xx 10^(6) ms^(-1) eVs` and `c = 3 xx 10^(8) ms^(-1))`

A

`approx6xx10^5ms^-1`

B

`approx0.6xx10^6ms^-1`

C

`approx61xx10^3ms^-1`

D

`approx0.3xx10^6ms^-1`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

The photoelectric threshold wavelength of a metal is 300 nm. The maximum kinetic energy of electrons ejected from the metal surface by ultraviolet light of wavelength 250 nm is nearly (h = 4.14*10^-15 eV s and c= 3*10^8 ms^-1)

if the threshold wavelength for the given metal is 8 xx 10^(-6) m ,then What is the photoelectric work function for a metal ?

if the threshold wavelength for the given metal is 4 xx 10^(-7) m ,What is the photoelectric work function for a metal ?

The wave number corresponding to threshold wavelength of a given metal is 3 xx 10^(6) m^(-1) . The work function of the metal is

For given enegy, corresponding wavelength will be E = 3.03 xx 10^(-19) Joules (h = 6.6 xx 10^(-34) j X sec., C = 3 xx 10^(8) m/sec

The threshold wavelenght of silver is 3800 Å . Calculate the maximum kinetic energy in eV of photoelelctrons emitted, when ultraviolet light of wavelegth 2600 Å falls on it. ( Planck's constant, h=6*63xx10^(-34)"Js",. Velocity of light in air, c=3xx10^(8)m//s )