Start Free Mock LoginAlready registered? Login here

Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsPhotoelectric effectMedium2 minPYQ_2008

PhysicsMediumsingle choice

The work function of a surface of a photosensitive material is $6.2 eV$ . The wavelength of the incident radiation for which the stopping potential is $5 V$ lies in theNEET 2008 (Mains)

Options:

Answer:

Solution:

$eV_{0} = E - ϕ E = eV_{0} + ϕ = 5 eV + 6.2 eV = 11.2 eV ∴ λ = (\frac{12400}{11.2}) \overset{˚}{A} = 1000 \overset{˚}{A} \Rightarrow hence lies in ultraviolet region.$

Stream:NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Photoelectric effect

⏱ 2mℹ️ Source: PYQ_2008

Doubts & Discussion

Loading discussions...