| ⇦ | 
| ⇨ |
The work function of sodium is 2.3 eV. The threshold wavelength of sodium will be
Options
(a) 5380 Å
(b) 2900 Å
(c) 2500 Å
(d) 2000 Å
Correct Answer:
5380 Å
Explanation:
Work function = W₀
Wavelength = λ₀ = 12375 eV Å/ 2.3 eV = 5380 Å
Therefore, λ₀ = 5380 Å
Related Questions:
- An ideal heat engine works between temperature T₁=500 K and T₂=375 K.
- If the volume of a block of aluminium is decreased by 1%, the pressure
- The total radiant energy per unit area, normal to the direction of incidence
- The height at which the weight of a body becomes 1/16 th, its weight
- In a diffraction pattern due to a singleslit of width a, the first minimum is observed
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