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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 excess pressure inside one soap bubble is three times that inside a second soap bubble
- The innermost orbit of hydrogen atom has a diameter 1.06Å. The diameter of tenth
- A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
- A battery of e.m.f. E and internal resistance r is connected to an external resistance
- A plane polarised light is incident normally on a tourmaline plate. Its E vector make
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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