| ⇦ | 
| ⇨ |
Sodium and copper have work function 2.3 eV and 4.5 eV respectively. The ratio of their threshold wavelengths is nearest to
Options
(a) 1 : 2
(b) 4 : 1
(c) 2 : 1
(d) 1 : 4
Correct Answer:
2 : 1
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - A sample of radioactive element has a mass of 10 gram at an instant t=0.
- A point source is kept at a distnace 1000m has an illumination I. To change the illumination
- A beam of light of wavelength 590 nm is focussed by a converging lens of diameter
- In an LCR circuit, capacitance is changed from C to 2C. For the resonant frequency
- The maximum number of possible interference maxima for slit-seperation equal to
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A sample of radioactive element has a mass of 10 gram at an instant t=0.
- A point source is kept at a distnace 1000m has an illumination I. To change the illumination
- A beam of light of wavelength 590 nm is focussed by a converging lens of diameter
- In an LCR circuit, capacitance is changed from C to 2C. For the resonant frequency
- The maximum number of possible interference maxima for slit-seperation equal to
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