| ⇦ | 
| ⇨ |
When a metallic surface is illuminated with radiation of wavelength λ, the stopping potential is V. If the same surface is illuminating with radiation of wavelength 2λ, the stopping potential is V/4. The threshold wavelength for the metallic surface is
Options
(a) 5λ
(b) 5/2 λ
(c) 3λ
(d) 4λ
Correct Answer:
3λ
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Two capacitors of 10pF and 20pF are connected to 200V and 100V sources, respectively.
- Two wheels having radii in the ratio 1:3 are connected by a common belt
- A ball is thrown vertically downwards from a height of 20 m with an initially
- In the Young’s modulus experiment, if length of wire and radius both are doubled,
- A particle is moving in a circle with uniform speed v. In moving from a point to another
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two capacitors of 10pF and 20pF are connected to 200V and 100V sources, respectively.
- Two wheels having radii in the ratio 1:3 are connected by a common belt
- A ball is thrown vertically downwards from a height of 20 m with an initially
- In the Young’s modulus experiment, if length of wire and radius both are doubled,
- A particle is moving in a circle with uniform speed v. In moving from a point to another
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