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The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV, and the stopping potential for a radiation incident on this surface 5 V. The incident radiation lies in
Options
(a) X-ray region
(b) Ultra-violet region
(c) Infra-red region
(d) Visible region
Correct Answer:
Ultra-violet region
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
- Light of wavelength λ is incident on slit of width d. The resulting diffraction
- The electric potential at the surface of an atomic nucleus (z=50) of radius
- A particle of mass ‘m’ is kept at rest at a height 3R from the surface of earth
- A stone falls freely under gravity. It covers distances h1, h2 and h3 in the first 5 secs
- Two racing cars of masses m₁ and m₂ are moving in circles of radii
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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