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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
- The kinetic energy of an electron in the first excited state is
- A tuning fork vibrates with 2 beats in 0.04 second. The frequency of the fork is
- An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
- An air core solenoid has 1000 turns and is one meter long. Its cross sectional area
- A certain mass of Hydrogen is changed to Helium by the process of fusion
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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