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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.
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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 manifestation of band structure in solids is due to
- The mean free path of molecules of a gas,(radius ‘r’) is inversely proportional to
- Two spheres of mass m and M are situated in air and the gravitational force
- The voltage of clouds is 4×10⁶ volt with respect to ground. In a lightening
- A particle is kept at rest at the top of a sphere of diameter 42m.When disturbed slightly
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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