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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.
Related Questions: - A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
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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
- A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
- Number of electrons in one mC charge, given e=1.6×10⁻¹⁹ C, will be
- Two blocks of masses m₁=4 kg and m₂= 2kg are connected to the ends of a string
- A body of mass m is placed on the earth’s surface. It is taken from the earth’s surface
- At what temperature will the rms speed of air molecules be double that of NTP?
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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