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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
- When a ceiling fan is switched on, it makes 10 revolutions in the first 3s
- If the highest modulating frequency of the wave is 5 kHz, the number
- The potential difference that must be applied to stop the fastest photoelectrons
- Two coherent monochromatic beams of intensities I and 4I respectively, are superposed.
- The self induced e.m.f. in a 0.1 H coil when the current in it is changing
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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