Start Free Mock LoginAlready registered? Login here

Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsPhotoelectric effectEasy2 minPYQ_2020

PhysicsEasysingle choice

The work function of a substance is $4.0 eV$ . The longest wavelength of light that can cause photoelectron emission from this substance is approximately

Options:

Answer:

Solution:

The maximum wavelength which is responsible for emission of photoelectron is

$λ_{0} = \frac{h c}{W_{0}} = \frac{1240}{4}$

$= 310 n m$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Photoelectric effect

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...