| ⇦ | 
| ⇨ |
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: - A Carnot engine, having an efficiency of η=1/10 as heat engine, is used
- Penetrating power of X-rays does not depend on
- In a uniform circular motion, work done in one complete rotation is
- A uniform rope of length 12 m and mass 6 kg hangs vertically from a rigid support.
- A bullet loses 1/20 of its velocity after penetrating a plank.How many planks
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A Carnot engine, having an efficiency of η=1/10 as heat engine, is used
- Penetrating power of X-rays does not depend on
- In a uniform circular motion, work done in one complete rotation is
- A uniform rope of length 12 m and mass 6 kg hangs vertically from a rigid support.
- A bullet loses 1/20 of its velocity after penetrating a plank.How many planks
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