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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
- For CE transistor amplifier, the audio signal voltage across the collector resistance
- The cylindrical tube of a spray pump has radius R, one end of which has n fine holes,
- The magnetic susceptibility does not depend upon the temperature in
- A black body is at 727⁰C. It emits energy at a rate which is proportional to
- A sound absorber attenuates the sound level by 20 dB. The intensity decreases
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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