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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.
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The temperature at which the vapour pressure of a liquid becomes equal to the external
- If the kinetic energy of the particle is increased to 16 times its previous value
- A thin circular ring of mass M and radius R is rotating in a horizontal plane about
- The wavelength of the first line of Lymasn series for hydrogen atom is equal
- Perfectly black body radiates the energy 18 J/s at 300K. Another ordinary body of e=0.8
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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