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The photoelectric threshold wevelength for potassium (work function being 2 eV) is
Options
(a) 620 nm
(b) 310 nm
(c) 1200 nm
(d) 2100 nm
Correct Answer:
620 nm
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
- Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
- The resistance of a bulb filament is 100 Ω at a temperature of 100⁰C.
- For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector)
- Magnetic induction produced at the centre of a circular loop carrying current is B.
- Two metal spheres of radii 0.01m and 0.02m are given a charge of 15mC and 45mC
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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