| ⇦ | 
| ⇨ |
A photoelectric surface is illuminated successively by monochromatic light of wavelength λ and λ/2. If the maximum kinetic energy of the emitted photoelectrons in the second case is 3 times that in the first case, the work function of the surface of the material is (h=Planck’s constant, c=speed of light)
Options
(a) 2hc/λ
(b) hc/3λ
(c) hc/2λ
(d) hc/λ
Correct Answer:
hc/2λ
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - A astronomical telescope has objective and eye-piece of focal lengths
- Two discs of moment of inertia I₁ and I₂ and angular speeds ?￢ﾂﾁ and ?￢ﾂﾂ are rotating
- A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
- A parallel plate capacitor with air between the plates has a capacitance of 9 pF.
- The angle of incidence at which reflected light is totally polarised for refraction
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A astronomical telescope has objective and eye-piece of focal lengths
- Two discs of moment of inertia I₁ and I₂ and angular speeds ?￢ﾂﾁ and ?￢ﾂﾂ are rotating
- A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
- A parallel plate capacitor with air between the plates has a capacitance of 9 pF.
- The angle of incidence at which reflected light is totally polarised for refraction
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply